I never got what I considered a reasonable explanation for all that brutality, suffering and then resurrection of the physical body of Jesus. If you can provide one, then please do. Happy Easter.
I can only share with you my own understanding. I am LDS and will give you my thoughts and feelings on the subject based on my faith.
First, I think it is important to understand that God, in his eternal kingdom, is a God of law and order. His kingdom is ruled by a celestial law that must be followed by the inhabitants. If the inhabitants are incapable of living this higher law, then perhaps they should be in another kingdom having a lesser law.
Doctrine and Covenants 88:22
22 For he who is not able to abide the law of a celestial kingdom cannot abide a celestial glory.
Those who are to inherit the kingdom of heaven should be required to live according to the law of that kingdom. If the kingdom of heaven were inhabited by thieves, liars, adulterers, etc., it would not be heaven at all. So in order to maintain the law God has said,
Doctrine and Covenants 132:8
8 Behold, mine house is a house of order, saith the Lord God, and not a house of confusion.
Moses 6:57
57 Wherefore teach it unto your children, that all men, everywhere, must repent, or they can in nowise inherit the kingdom of God, for no unclean thing can dwell there, or dwell in his presence; for, in the language of Adam, Man of Holiness is his name, and the name of his Only Begotten is the Son of Man, even Jesus Christ, a righteous Judge, who shall come in the meridian of time.
God has made it so that those of like characters will be able to live together. Those who are not of like character, will be separated into differing kingdoms. Those who love God and seek to be like him will inherit the kingdom of God where they all obey a celestial law. So laws have been set to maintain the various kingdoms in the hereafter. The laws must be enforced or these kingdoms could not be maintained. But because there is a division God must be a just God in denying some entrance into his kingdom and allowing others. He must rule and reign according to justice in the laws he sets.
Another key ingredient in my understanding of the atonement is free will. God rules by giving his creations free will. All things follow and obey God because of the type of being God is. He is a God who loves his creations and seeks to bring to them the greatest amount of joy and happiness. He is also a God of justice and will mete out to all in fairness and honesty.
God is a being of complete free will. But he is a being of goodness as well. Nobody makes God do good. He does it of his own free will. It is his character that makes him choose good continually. And all creation knows this and follows him because they trust him and know that he will only seek after their happiness and welfare.
God wants his children to be like him. He wants them to learn to always choose the right. To choose goodness in and of themselves. You cannot force people to be like God because God is a being of free will. Those who are to become like him must also learn to choose good in and of themselves. If you were to force them to do good, they would not really be like him. Free will is essential to joy and happiness as well as learning to be more like God.
LDS believe that God does not create things ex nihilo or out of nothing. We believe he creates things out of eternally existent material. We also believe that God is a self-existent being and that his children too have an element of self-existence within them. Thus we believe that a part of man, the part that makes up man's intelligence and free will, is self-existent and was not created or made and neither indeed can be. For this reason God could not make man to be perfect but could only create man from already existing intelligence and matter. So in order to help man to increase in obtaining the attributes of God, it was necessary for God to teach man and to instruct him. This earth life became a school for man to learn right from wrong and to learn to choose good over evil.
The problem arises because there is an issue between justice and the love of God in raising imperfect souls to perfection. On the one hand, according to justice, no unclean thing can enter into the kingdom. Once man sins, he has broken the law and fallen short of the glory. According to the law of justice those who break the law cannot be allowed to be part of a kingdom where that law is held inviolate. If God were to ignore the law, then God would cease to be a God of justice and all his creations who honor him, would know that. Perhaps not being just would be a violation of God's own law and God would not be worthy of his own kingdom. So God, of a necessity, must be a just God.
So God, in his infinite wisdom and love devised a way for him to allow only the truly repentant sinners to be able to find entrance into his kingdom. He couldn't accomplish this of his own doing but needed an accomplice to carry out the plan of mercy. So he brought his plan to his firstborn son, who, upon hearing of it freely chose to take part in it. It was a plan brought about because God and his Son so loved his other children that they were, of their own free will, willing to make it happen. The plan was to send the Great Creator of all things to this earth to set the example for all by living a perfectly sinless life. Living a sinless life was absolutely critical to this plan. While on the earth Jesus would suffer pain to the extent of all sins of every person. This pain is described in scripture as follows:
Doctrine and covenants 19:16-19
16 For behold, I, God, have suffered these things for all, that they might not suffer if they would repent;
17 But if they would not repent they must suffer even as I;
18 Which suffering caused myself, even God, the greatest of all, to tremble because of pain, and to bleed at every pore, and to suffer both body and spirit—and would that I might not drink the bitter cup, and shrink—
19 Nevertheless, glory be to the Father, and I partook and finished my preparations unto the children of men.
It was essential that Jesus was a sinless sacrifice, a lamb without blemish. You see, a great injustice was created when Jesus, who did no sin, suffered and died. And the Father, being a just God would of necessity need to recompense Jesus for the suffering he unjustly suffered. He would also need to recompense Jesus to the extent of his suffering. Jesus' recompense was that he could forgive the sins of the repentant sinner. You see it still would be unjust to allow the unjust to enter his kingdom. But when all of God's creations witnessed what their creator was willing to do and the love he manifested for his fellow brethren, they were moved with compassion and the law of mercy was sustained throughout all God's creations.
In this great act of love, God was able to be a God of love and mercy, and still be a God of justice, equity and truth. God loves us more than we know.