I believe that if you want the Bible in your life or that of your child's, teach it to them. So please, pick your fights and make them good ones.
Religion starts at home.
God gave Old Testament laws to his covenant people of Israel. When Israel rejected Jesus Christ as the son of God and savior of the world at Calvary, they were no longer God's covenant people. God then established the new covenant for both the Jews and the Gentiles. The old covenant required animal sacrifices, which pointed forward to Jesus' death, and the new covenant points us back to Jesus' death at Calvary and the resurrection. The Jerusalem Council interpreted what old covenant laws would and would not apply to the Christian church.