Bible Verses About Chastity: Required in heart

Know ye not that ye are the temple of God, and that the Spirit of God dwelleth in you?

Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness,

What? know ye not that your body is the temple of the Holy Ghost which is in you, which ye have of God, and ye are not your own?

Mortify therefore your members which are upon the earth; fornication, uncleanness, inordinate affection, evil concupiscence, and covetousness, which is idolatry:

Let no man deceive you with vain words: for because of these things cometh the wrath of God upon the children of disobedience.