Matthew 17:16-20

New American Standard Bible

¹⁶ And I brought him to Your disciples, and they could not cure him.” ¹⁷ And Jesus answered and said, “You unbelieving and perverse generation, how long shall I be with you? How long shall I put up with you? Bring him here to Me.” ¹⁸ And Jesus rebuked him, and the demon came out of him, and the boy was healed ^[a]at once.

¹⁹ Then the disciples came to Jesus privately and said, “Why could we not cast it out?” ²⁰ And He *said to them, “Because of your meager faith; for truly I say to you, ^(A)if you have faith ^[b]the size of ^(B)a mustard seed, you will say to ^(C)this mountain, ‘Move from here to there,’ and it will move; and ^(D)nothing will be impossible for you.^[c]”