It seems that so many Christians today want to all but discard the Old Testament. When we practice a principle, or hold a standard based on verses from the Old Testament we hear, “oh, but that is the Old Testament.” Yet, in the verses I have quoted below – we see that Jesus taught us that He did not come to destroy the law, but rather to fulfill it. I believe that teaches us that the demands the law made in punishment were fulfilled when Jesus died on the cross. However, I believe it also teaches us that while the punishment for breaking the law was paid, it does not mean that we don’t have to observe or obey the law. As an example, in the law when a child disobeyed they were to be publicly punished, stoned to death. Now, Jesus paid the death, but God still wants children to obey their parents.
God intends for us to use the Old Testament, because It testifies of Jesus. The disciples used the Old Testament to preach the gospel and the world was turned upside down. The law demanded perfection, absolute obedience for one trying to earn God’s favor, and death for disobedience. Jesus fulfilled all of those when He "did always those things that pleased the Father," "He was obedient unto death, even the death of the cross," and He indeed died for our sins… then He arose victorious over sin!
So, I say all of that to say – read the Old Testament, look for the Testimony of Jesus, the Gospel, and learn the attributes of God from It – and while you’re reading It, praise the Lord, for in Jesus the law is fulfilled!
"Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil." Matthew 5:17
"Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me." John 5:39
Have a wonderful day!