Exodus chapter 20: verse 14 and 17:
“You shall not commit adultery.”
“You shall not covet your neighbor’s wife”
Gospel according to Matthew chapter 5 27-29:
“You have heard that it was said, 'You shall not commit adultery.'But I say to you, everyone who looks at a woman with lust has already committed adultery with her in his heart. If your right eye causes you to sin, tear it out and throw it away. It is better for you to lose one of your members than to have your whole body thrown into Gehenna.”
1 Peter 1:14-16
"Like obedient children, do not act in compliance with the desires of your former ignorance but, as he who called you is holy, be holy yourselves in every aspect of your conduct, for it is written, “Be holy because I (am) holy.”
1 John 2:15-17
“Do not love the world or the things of the world. 7 If anyone loves the world, the love of the Father is not in him. For all that is in the world, sensual lust, enticement for the eyes, and a pretentious life, is not from the Father but is from the world. Yet the world and its enticement are passing away. But whoever does the will of God remains forever.”