Luke 17:1-6 New Revised Standard Version (NRSV)
Some Sayings of Jesus
17 Jesus[a] said to his disciples, “Occasions for stumbling are bound to come, but woe to anyone by whom they come! 2 It would be better for you if a millstone were hung around your neck and you were thrown into the sea than for you to cause one of these little ones to stumble. 3 Be on your guard! If another disciple[b] sins, you must rebuke the offender, and if there is repentance, you must forgive. 4 And if the same person sins against you seven times a day, and turns back to you seven times and says, ‘I repent,’ you must forgive.”
5 The apostles said to the Lord, “Increase our faith!” 6 The Lord replied, “If you had faith the size of a[c] mustard seed, you could say to this mulberry tree, ‘Be uprooted and planted in the sea,’ and it would obey you.