Have you noticed that when a Christian wants to preach about their God is all good things they quote the NT?

I believe in both the OT and the NT---the OT is a long biblical history of God and His people and the NT gives an account of Christ's birth and the establishing of the Christian church . It's not like you have to believe one or the other. You have to read the whole book. Jesus said I did not come to abolish the Law, I came to fulfill it. There are things in all 66 books that I rely on to get me through this life .