Matthew 17:18-20

Douay-Rheims 1899 American Edition

¹⁸ Then came the disciples to Jesus secretly, and said: Why could not we cast him out?

¹⁹ Jesus said to them: Because of your unbelief. For, amen I say to you, if you have faith as a grain of mustard seed, you shall say to this mountain, Remove from hence hither, and it shall remove; and nothing shall be impossible to you.

²⁰ But this kind is not cast out but by prayer and fasting.