How do we know antinomianism is wrong?

Antinomianism promotes the idea that Christians, being under grace, are free from any moral law that governs their behavior. However, this doctrine misrepresents the fullness of grace. While it is true that we are not justified by the law, we are nonetheless called to live in a way that reflects our faith. Paul points out in 2 Corinthians 5:14 that the love of Christ compels us, indicating that a genuine faith produces a transformed life. Faith, as expressed in Galatians 5:6, works through love, demonstrating that true believers cannot disregard God's law and live in lawlessness without contradicting their testimony of faith.