There are many serious objections to the claim of Joseph Smith and the LDS church that the Book of Mormon is divinely inspired Latter-day scripture supplemental to the Bible.* However, none are more significant than the numerous contradictions between Book of Mormon teaching and the Bible. This list is illustrative only, not exhaustive.
(1) The Book of Mormon teaches that little children are not capable of sin because they do not have a sinful nature (Moroni 8:8). In contrast, the Bible in Psalm 51:5 clearly teaches that we have a sinful nature from birth: “Surely I was sinful at birth, sinful from the time my mother conceived me” (NIV). (This does not mean that those who die in infancy are lost.**)
Moroni 8:8
8 Listen to the words of Christ, your Redeemer, your Lord and your God. Behold, I came into the world not to call the righteous but sinners to repentance; the whole need no physician, but they that are sick; wherefore, little children are whole, for they are not capable of committing sin; wherefore the curse of Adam is taken from them in me, that it hath no power over them; and the law of circumcision is done away in me.
The atonement of Jesus Christ did away with original sin and we are not held accountable for Adam's transgression but only for our own sins. Little children are not capable of sinning until they reach the age of accountability. They are innocent in Christ until they are capable of sinning. Here are the rest of the words of Moroni regarding this matter:
9 And after this manner did the Holy Ghost manifest the word of God unto me; wherefore, my beloved son, I know that it is solemn mockery before God, that ye should baptize little children.
10 Behold I say unto you that this thing shall ye teach—repentance and baptism unto those who are accountable and capable of committing sin; yea, teach parents that they must repent and be baptized, and humble themselves as their little children, and they shall all be saved with their little children.
11 And their little children need no repentance, neither baptism. Behold, baptism is unto repentance to the fulfilling the commandments unto the remission of sins.
12 But little children are alive in Christ, even from the foundation of the world; if not so, God is a partial God, and also a changeable God, and a respecter to persons; for how many little children have died without baptism!
13 Wherefore, if little children could not be saved without baptism, these must have gone to an endless hell.
14 Behold I say unto you, that he that supposeth that little children need baptism is in the gall of bitterness and in the bonds of iniquity; for he hath neither faith, hope, nor charity; wherefore, should he be cut off while in the thought, he must go down to hell.
15 For awful is the wickedness to suppose that God saveth one child because of baptism, and the other must perish because he hath no baptism.
16 Wo be unto them that shall pervert the ways of the Lord after this manner, for they shall perish except they repent. Behold, I speak with boldness, having authority from God; and I fear not what man can do; for perfect love casteth out all fear.
17 And I am filled with charity, which is everlasting love; wherefore, all children are alike unto me; wherefore, I love little children with a perfect love; and they are all alike and partakers of salvation.
18 For I know that God is not a partial God, neither a changeable being; but he is unchangeable from all eternity to all eternity.
19 Little children cannot repent; wherefore, it is awful wickedness to deny the pure mercies of God unto them, for they are all alive in him because of his mercy.
20 And he that saith that little children need baptism denieth the mercies of Christ, and setteth at naught the atonement of him and the power of his redemption.
21 Wo unto such, for they are in danger of death, hell, and an endless torment. I speak it boldly; God hath commanded me. Listen unto them and give heed, or they stand against you at the judgment-seat of Christ.
22 For behold that all little children are alive in Christ, and also all they that are without the law. For the power of redemption cometh on all them that have no law; wherefore, he that is not condemned, or he that is under no condemnation, cannot repent; and unto such baptism availeth nothing—
23 But it is mockery before God, denying the mercies of Christ, and the power of his Holy Spirit, and putting trust in dead works.
24 Behold, my son, this thing ought not to be; for repentance is unto them that are under condemnation and under the curse of a broken law.
(2) The Book of Mormon teaches that the disobedience of Adam and Eve in eating the forbidden fruit was necessary so that they could have children and bring joy to mankind (2 Nephi 2:23-25). In contrast, the Bible specifically declares that Adam’s transgression was a sinful act of rebellion that unleashed the power of sin and death in God’s perfect world (Romans 5:12; 8:20-21). There is no Biblical support for the view that Adam and Eve could only fulfill the command to “be fruitful and multiply” (Genesis 1:28) by disobeying God’s command regarding the forbidden fruit (Genesis 2:17). The Book of Mormon teaching that these divine commands are contradictory, and that God expected Adam and Eve to figure out that in reality He wanted them to break the latter command (“of the tree of the knowledge of good and evil, thou shalt not eat of it”) in order to keep the former (“be fruitful and multiply”), has no basis in logic or the Biblical text, and attributes equivocation to God.
Does God know the end from the beginning? Did God call Jesus Christ as the Savior of the world before the world was? Did God place the tree of knowledge of good and evil in the garden knowing full well that Adam and Eve would partake of the fruit? Did God place Satan and his followers on the earth knowing full well that they would tempt Adam and Eve to do evil? Knowing the end from the beginning God knew exactly what would occur in the Garden of Eden and yet he still placed the Devil and his minions on earth, He still planted the tree of knowledge of good and evil in the garden knowing full well the outcome, God even called Jesus as the Savior of the world long before he created this earth to atone for the sins of mankind. Do you really believe that God didn't know the end from the beginning and it was all part of His glorious plan? If God did not want the outcome, he could simply have never planted the tree in the garden nor given the command to not partake of it. He also could have placed Satan and his minions elsewhere besides on this earth. No, God knew exactly what he was doing and even called Jesus to be a Savior before the foundation of this world to save us from sin.
1 Peter 1:19-20
19 But with the precious blood of Christ, as of a lamb without blemish and without spot:
20 Who verily was foreordained before the foundation of the world, but was manifest in these last times for you,
This whole mortal life was planned out by God before the foundation of the world. The reason the fall was necessary and the atonement of Jesus was necessary is because God knew that we were weak and not perfect like himself and would fall. This earth life became an opportunity for mankind to learn good and evil and learn to choose the good over the evil. Only in this way was mankind able to progress and become more like God.
Genesis 3:22
22 And the Lord God said, Behold, the man is become as one of us, to know good and evil: and now, lest he put forth his hand, and take also of the tree of life, and eat, and live for ever:
God only gave the restriction on the tree of knowledge of good and evil to bring about the fall of mankind. God had already prepared a way of salvation from the fall. The fall allowed man to progress and gain a knowledge of good and evil and become more like God. God's world was not perfect before the fall because man was in a state of innocence not knowing good and evil. Only through going through the fall of man and through the salvation of Jesus Christ was man able to progress to more like God. The Book of Mormon teaches the following:
2 Nephi 2:14-30
14 And now, my sons, I speak unto you these things for your profit and learning; for there is a God, and he hath created all things, both the heavens and the earth, and all things that in them are, both things to act and things to be acted upon.
15 And to bring about his eternal purposes in the end of man, after he had created our first parents, and the beasts of the field and the fowls of the air, and in fine, all things which are created, it must needs be that there was an opposition; even the forbidden fruit in opposition to the tree of life; the one being sweet and the other bitter.
16 Wherefore, the Lord God gave unto man that he should act for himself. Wherefore, man could not act for himself save it should be that he was enticed by the one or the other.
17 And I, Lehi, according to the things which I have read, must needs suppose that an angel of God, according to that which is written, had fallen from heaven; wherefore, he became a devil, having sought that which was evil before God.
18 And because he had fallen from heaven, and had become miserable forever, he sought also the misery of all mankind. Wherefore, he said unto Eve, yea, even that old serpent, who is the devil, who is the father of all lies, wherefore he said: Partake of the forbidden fruit, and ye shall not die, but ye shall be as God, knowing good and evil.
19 And after Adam and Eve had partaken of the forbidden fruit they were driven out of the garden of Eden, to till the earth.
20 And they have brought forth children; yea, even the family of all the earth.
21 And the days of the children of men were prolonged, according to the will of God, that they might repent while in the flesh; wherefore, their state became a state of probation, and their time was lengthened, according to the commandments which the Lord God gave unto the children of men. For he gave commandment that all men must repent; for he showed unto all men that they were lost, because of the transgression of their parents.
22 And now, behold, if Adam had not transgressed he would not have fallen, but he would have remained in the garden of Eden. And all things which were created must have remained in the same state in which they were after they were created; and they must have remained forever, and had no end.
23 And they would have had no children; wherefore they would have remained in a state of innocence, having no joy, for they knew no misery; doing no good, for they knew no sin.
24 But behold, all things have been done in the wisdom of him who knoweth all things.
25 Adam fell that men might be; and men are, that they might have joy.
26 And the Messiah cometh in the fulness of time, that he may redeem the children of men from the fall. And because that they are redeemed from the fall they have become free forever, knowing good from evil; to act for themselves and not to be acted upon, save it be by the punishment of the law at the great and last day, according to the commandments which God hath given.
27 Wherefore, men are free according to the flesh; and all things are given them which are expedient unto man. And they are free to choose liberty and eternal life, through the great Mediator of all men, or to choose captivity and death, according to the captivity and power of the devil; for he seeketh that all men might be miserable like unto himself.
28 And now, my sons, I would that ye should look to the great Mediator, and hearken unto his great commandments; and be faithful unto his words, and choose eternal life, according to the will of his Holy Spirit;
29 And not choose eternal death, according to the will of the flesh and the evil which is therein, which giveth the spirit of the devil power to captivate, to bring you down to hell, that he may reign over you in his own kingdom.
30 I have spoken these few words unto you all, my sons, in the last days of my probation; and I have chosen the good part, according to the words of the prophet. And I have none other object save it be the everlasting welfare of your souls. Amen.