Lust & sexual purity

You are not your own; you were bought at a price.

For it is God’s will that you should be holy: You must abstain from sexual immorality; each of you must know how to control his own body in holiness and honor, not in lustful passion like the Gentiles who do not know God;
1 Thessalonians 4:3–5

Flee from sexual immorality. Every other sin a man can commit is outside his body, but he who sins sexually sins against his own body. Do you not know that your body is a temple of the Holy Spirit who is in you, whom you have received from God? You are not your own; you were bought at a price. Therefore glorify God with your body.
1 Corinthians 6:18–20

You have heard that it was said, ‘Do not commit adultery.’ But I tell you that anyone who looks at a woman to lust after her has already committed adultery with her in his heart. If your right eye causes you to sin, gouge it out and throw it away. It is better for you to lose one part of your body than for your whole body to be thrown into hell. And if your right hand causes you to sin, cut it off and throw it away. It is better for you to lose one part of your body than for your whole body to depart into hell.
Matthew 5:27–30

“I have made a covenant with my eyes. How then could I gaze with desire at a virgin?
Job 31:1

Flee from youthful passions and pursue righteousness, faith, love, and peace, together with those who call on the Lord out of a pure heart.
2 Timothy 2:22

Marriage should be honored by all and the marriage bed kept undefiled, for God will judge the sexually immoral and adulterers.
Hebrews 13:4