'Chaste' in the Bible

I am jealous for you with a godly jealousy because I have promised you to one husband, to present you as a pure virgin to Christ.

So whoever rejects and disregards this is not [merely] rejecting man but the God who gives His Holy Spirit to you [to dwell in you and empower you to overcome temptation].

to be sensible, pure, makers of a home [where God is honored], good-natured, being subject to their own husbands, so that the word of God will not be dishonored.

And everyone who has this hope [confidently placed] in Him purifies himself, just as He is pure (holy, undefiled, guiltless).