I have always considered both the Old and the New as the Word. Not that I always understood it but even when I was very young reading it I respected it as the word of God spoken through holy men-people and written down through the ages. .
Again, to be clear, you would agree that the bible -
the entire Bible, both Old,
and New - are was written for all ages, and the things that were described as abhorrent in the Old Testament, are abhorrent now, and the things that were described as acceptable in the Old Testament, are acceptable today?
If the Old Testament were perfect for all times and under any and all conditions there would be no need for a New Testament. The Bible specifically states that the Old Testament is no longer authoritative. Here are the relevant versus from the KJV (verse numbers removed for easier reading; all highlights are my own):
“
By so much was Jesus made a surety of a better testament. And they truly were many priests, because they were not suffered to continue by reason of death: But this man, because he continueth ever, hath an unchangeable priesthood. Wherefore he is able also to save them to the uttermost that come unto God by him, seeing he ever liveth to make intercession for them. For such an high priest became us, who is holy, harmless, undefiled, separate from sinners, and made higher than the heavens; Who needeth not daily, as those high priests, to offer up sacrifice, first for his own sins, and then for the people's: for this he did once, when he offered up himself.
For the law maketh men high priests which have infirmity; but the word of the oath, which was since the law, maketh the Son, who is consecrated for evermore.(Hebrews7:22-28).
“Now of the things which we have spoken this is the sum: We have such an high priest, who is set on the right hand of the throne of the Majesty in the heavens; A minister of the sanctuary, and of the true tabernacle, which the Lord pitched, and not man. For every high priest is ordained to offer gifts and sacrifices: wherefore it is of necessity that this man have somewhat also to offerFor if he were on earth, he should not be a priest, seeing that there are priests that offer gifts according to the law: Who serve unto the example and shadow of heavenly things, as Moses was admonished of God when he was about to make the tabernacle: for, See, saith he, that thou make all things according to the pattern shewed to thee in the mount.
But now hath he obtained a more excellent ministry, by how much also he is the mediator of a better covenant, which was established upon better promises. For if that first covenant had been faultless, then should no place have been sought for the second. For finding fault with them, he saith, Behold, the days come, saith the Lord, when I will make a new covenant with the house of Israel and with the house of Judah: Not according to the covenant that I made with their fathers in the day when I took them by the hand to lead them out of the land of Egypt; because they continued not in my covenant, and I regarded them not, saith the Lord.
“For this is the covenant that I will make with the house of Israel after those days, saith the Lord; I will put my laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to me a people: And they shall not teach every man his neighbour, and every man his brother, saying, Know the Lord: for all shall know me, from the least to the greatest. For I will be merciful to their unrighteousness, and their sins and their iniquities will I remember no more.
In that he saith, A new covenant, he hath made the first old. Now that which decayeth and waxeth old is ready to vanish away” (Hebrews 8:5-13, KJV).
Now I expect to hear an argument about How God is perfect and never changes. However, nothing in the above quoted scripture indicates that God had changed; rather, the verses seem to say that God changed the rules because mankind had changed.