Luke 17:1-10 (ESV)
Temptations to Sin
17:1 And he said to his disciples, “Temptations to sin  are sure to come, but woe to the one through whom they come! 2 It would be better for him if a millstone were hung around his neck and he were cast into the sea than that he should cause one of these little ones to sin.  3 Pay attention to yourselves! If your brother sins, rebuke him, and if he repents, forgive him, 4 and if he sins against you seven times in the day, and turns to you seven times, saying, ‘I repent,’ you must forgive him.”
Increase Our Faith
5 The apostles said to the Lord, “Increase our faith!” 6 And the Lord said, “If you had faith like a grain of mustard seed, you could say to this mulberry tree, ‘Be uprooted and planted in the sea,’ and it would obey you.
7 “Will any one of you who has a servant  plowing or keeping sheep say to him when he has come in from the field, ‘Come at once and recline at table’? 8 Will he not rather say to him, ‘Prepare supper for me, and dress properly,  and serve me while I eat and drink, and afterward you will eat and drink’? 9 Does he thank the servant because he did what was commanded? 10 So you also, when you have done all that you were commanded, say, ‘We are unworthy servants;  we have only done what was our duty.’”