Matthew 15:19
19 For out of the heart come bevil thoughts, cmurder, adultery, sexual immorality, theft, false witness, dslander.
Matthew 5:28
28 But I say to you that jeveryone who looks at a woman with lustful intent has already committed adultery with her in his heart.
Ephesians 5:3–4
3 But psexual immorality and all impurity or covetousness qmust not even be named among you, as is proper among saints. 4 Let there be rno filthiness nor foolish talk nor crude joking, swhich are out of place, but instead tlet there be thanksgiving.