Luke 17:3-6 New American Standard Bible (NASB)
3 [a]Be on your guard! If your brother sins, rebuke him; and if he repents, forgive him. 4 And if he sins against you seven times a day, and returns to you seven times, saying, ‘I repent,’ [b]forgive him.”
5 The apostles said to the Lord, “Increase our faith!” 6 And the Lord said, “If you [c]had faith like a mustard seed, you would say to this mulberry tree, ‘Be uprooted and be planted in the sea’; and it would [d]obey you.