Jesus shows in Matthew 5:27–30 that sexual purity includes the heart, requiring disciplined desire and decisive removal of stumbling blocks.
Adultery of the Heart — Lust and Sexual Purity, Matthew 5:27–30
What Does It Mean to Lust in Your Heart (Matthew 5:28)?
Jesus condemns chosen, sustained desire that uses the eyes to cultivate adultery in the heart, not mere attraction or unwanted temptation.
