Well ok I will try.
Nothing in the old testament has been made void.
The Law or law of Moses Christ redeemed us from.
No person could keep the law,if you broke one jot of it you were guilty of breaking the whole Law.
Since breaking the law was sin the law required death.
The New Testament calls it the law of sin and death.
Here is the only change in the New Testament from the Old.
The New is a better covenant for our sins ,it is eternal and would only happen one time.
Hebrews 9: 13. For if the blood of bulls and of goats, and the ashes of an heifer sprinkling the unclean, sanctifieth to the purifying of the flesh: 14. How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God? 15. And for this cause he is the mediator of the new testament, that by means of death, for the redemption of the transgressioer the first testament, they which are called might receive the promise of eternal inheritance. 16. For where a testament is, there must also of necessity be the death of the testator. 17. For a testament is of force after men are dead: otherwise it is of no strength at all while the testator liveth. 18. Whereupon neither the first testament was dedicated without blood. 19. For when Moses had spoken every precept to all the people according to the law, he took the blood of calves and of goats, with water, and scarlet wool, and hyssop, and sprinkled both the book, and all the people, 20. Saying, This is the blood of the testament which God hath enjoined unto you. 21. Moreover he sprinkled with blood both the tabernacle, and all the vessels of the ministry. 22. And almost all things are by the law purged with blood; and without shedding of blood is no remission. 23. It was therefore necessary that the patterns of things in the heavens should be purified with these; but the heavenly things themselves with better sacrifices than these.
Now when I mentioned there are common things in old and new testament, such as murder , rape stealing, these and other things are a abomination to God.
We are without excuse in knowing right from wrong.
Romans 2: 12. For as many as have sinned without law shall also perish without law: and as many as have sinned in the law shall be judged by the law; 13. (For not the hearers of the law are just before God, but the doers of the law shall be justified. 14. For when the Gentiles, which have not the law, do by nature the things contained in the law, these, having not the law, are a law unto themselves: 15. Which shew the work of the law written in their hearts, their conscience also bearing witness, and their thoughts the mean while accusing or else excusing one another
-
The Law is written in our hearts to know right from wrong.
Hebrews 10: 15. Whereof the Holy Ghost also is a witness to us: for after that he had said before, 16. This is the covenant that I will make with them after those days, saith the Lord, I will put my laws into their hearts, and in their minds will I write them; 17. And their sins and iniquities will I remember no more. 18. Now where remission of these is, there is no more offering for sin. 19. Having therefore, brethren, boldness to enter into the holiest by the blood of Jesus, 20. By a new and living way, which he hath consecrated for us, through the veil, that is to say, his flesh;
God does not change ,its his mercy that Christ was the lamb slain from the foundation of the world. The Old Testament is a for shadow of Christ all the way through.
There is much more about God in the old testament than the law of Moses.
Gods will for mankind is found in the Old Testament.
Hebrews 10: 15. Whereof the Holy Ghost also is a witness to us: for after that he had said before, 16. This is the covenant that I will make with them after those days, saith the Lord, I will put my laws into their hearts, and in their minds will I write them; 17. And their sins and iniquities will I remember no more. 18. Now where remission of these is, there is no more offering for sin. 19. Having therefore, brethren, boldness to enter into the holiest by the blood of Jesus, 20. By a new and living way, which he hath consecrated for us, through the veil, that is to say, his flesh;
So now we know that Christ redeemed us from the law ,
We also understand He did not Change the will of God.
Tithing is the will of God , it was established with Abraham
And with Jacob,long before the law of Moses.