Luke 17:4-6

Young's Literal Translation

⁴ and if seven times in the day he may sin against thee, and seven times in the day may turn back to thee, saying, I reform; thou shalt forgive him.'

⁵ And the apostles said to the Lord, `Add to us faith;'

⁶ and the Lord said, `If ye had faith as a grain of mustard, ye would have said to this sycamine, Be uprooted, and be planted in the sea, and it would have obeyed you.