2 Corinthians 12:18 I exhorted Titus, and I sent the brother with him. Did Titus take any advantage of you? Didn't we walk in the same spirit? Didn't we walk in the same steps? (See NIV)
2 Peter 2:3 In covetousness they will exploit you with deceptive words: whose sentence now from of old doesn't linger, and their destruction will not slumber. (WEB NAS RSV NIV)
Proverbs 22:22 Don't exploit the poor, because he is poor; and don't crush the needy in court; (WEB NIV)
Isaiah 58:3 They say, Why have we kept ourselves from food, and you do not see it? why have we kept ourselves from pleasure, and you take no note of it? If, in the days when you keep from food, you take the chance to do your business, and get in your debts; (See NIV)