God was very clear. He defined His covenants as He revealed His salvation plan for humanity. Jesus is the culmination that plan, and it's not up to us to decide which parts of God's word we'll follow and which we won't. Anybody who's honestly read the Bible while seeking God knows the truth. The moral laws of the Old Testament still apply to us, the civil laws were for Israel, and the ceremonial laws were for their priests. In Matthew 5: 17-18, Jesus said " “ Do not think that I came to destroy the Law or the Prophets. I did not come to destroy but to fulfill. For assuredly, I say to you, till heaven and earth pass away, one jot or one tittle will by no means pass from the law till all is fulfilled. "