What does the Bible say about legalistic antinomianism?

The Bible addresses legalistic antinomianism by showing how individuals can adhere excessively to man-made rules while simultaneously disregarding divine commandments. In Mark 7:1-13, Jesus confronts the Pharisees for prioritizing their traditions over God's law, emphasizing that true defilement comes from within. This concept highlights the danger of legalism, where a focus on external rituals can blind believers to their own sinfulness and hypocrisy, as they become quick to judge others while ignoring their flaws.