Antinomianism, lawlessness is salvation made easy. The sales pitch is this, that you lose nothing while you are on your way to heaven. You can be lawless and go to heaven. Now you may have heard of legalism. Legalism is the opposite of antinomianism.
Legalism says that salvation is based on human good works apart from faith and apart from grace.
Jesus condemned this view of the Pharisees. Paul condemned this view of the Judaizers, especially in the books of Galatians and Romans. But antinomianism says salvation is based on faith in God and therefore obedience to God's law is not necessary at any stage in a Christian's life. So these are two opposite ideas, legalism and antinomianism, which are totally opposed to the teaching of the Bible. Antinomianism is not new.