Luke 16:10

He who is faithful in what is least is faithful also in much; and he who is unjust in what is least is unjust also in much.

Surrounding context

16:9 "And I say to you, make friends for yourselves by unrighteous mammon, that when you fail, they may receive you into an everlasting home.

16:10 He who is faithful in what is least is faithful also in much; and he who is unjust in what is least is unjust also in much.

16:11 Therefore if you have not been faithful in the unrighteous mammon, who will commit to your trust the true riches?

Translation and sources