Galatians takes a look at Paul’s thoughts on Jewish Law.
The fourth Epistle, and the ninth book in the New Testament, is Paul's letter to the Church in Galatia; Galatians. It was written around 49 AD and addressed Paul's concerns that some Christians were saying that Jewish Law must be observed. Paul opposed this and said in his letter that faith in Christ alone is the only requirement of being a Christian. He also warned of the terrible results of failure to believe in the pure Gospel of Christ.
Galatians 3:26-28
"For ye are all the children of God by faith in Christ Jesus. For as many of you as have been baptized into Christ have put on Christ. There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female: for ye are all one in Christ Jesus"