Luke 6:34-36 New Revised Standard Version (NRSV)
34 If you lend to those from whom you hope to receive, what credit is that to you? Even sinners lend to sinners, to receive as much again. 35 But love your enemies, do good, and lend, expecting nothing in return.[a] Your reward will be great, and you will be children of the Most High; for he is kind to the ungrateful and the wicked. 36 Be merciful, just as your Father is merciful.