Then Jesus said to His disciples, "It is inevitable that occasions which cause people to be led astray [from God] will come, but it is too bad for that person who is responsible for it happening. It would be good [i.e., better] for him to have had a huge millstone tied around his neck and be thrown into the ocean [Note: This "millstone" was a huge, circular stone rolled over grain to crush it and was moved by an animal walking in a circle], rather than having him cause one of these little ones [i.e., humble followers of the Lord] to be led astray [from God]. Pay attention to yourselves! "If your brother sins, rebuke him [i.e., show him where he is wrong in hope of effecting a change]; and if he repents [i.e., changes his heart and life], forgive him. read more.
And if he sins against you seven times a day and [then] comes to you seven times and says, 'I repent,' you should forgive him." Then the apostles said to the Lord, "Give us more faith." And the Lord said, "If you had faith as [small as] a mustard tree seed, you could say to this mulberry tree, 'Be uprooted and replanted in the ocean,' and it would obey you. "But which of you, whose slave is plowing or tending sheep, will say to him when he comes in from the field, 'Come and sit right down to eat'? Would you not say to him instead, 'Prepare the food for my meal [first] and get ready to serve me until I have had enough to eat and drink and [then] afterward you can eat and drink [yourself]'? Would he thank his slave for doing the things that he was ordered to do? So, you too, after you have done everything you were told to, should say, 'We are unworthy slaves. We have done [only] what we were supposed to do.'"

So, you too, after you have done everything you were told to, should say, 'We are unworthy slaves. We have done [only] what we were supposed to do.'" Verse ConceptsCommands, in NTServants, GoodDuty