2 Corinthians 8:7–9

But as you abound in everything—in faith, utterance, knowledge, all earnestness, and in your love to us—see that you also abound in this grace. I speak not by way of commandment, but as proving through the earnestness of others the sincerity also of your love. For you know the grace of our Lord Jesus Christ, that though he was rich, yet for your sakes he became poor, that you through his poverty might become rich.