Matthew 15:16

16 And Jesus said, `Are ye also yet without understanding?

Matthew 15:16 In-Context

14 let them alone, guides they are -- blind of blind; and if blind may guide blind, both into a ditch shall fall.'
15 And Peter answering said to him, `Explain to us this simile.'
16 And Jesus said, `Are ye also yet without understanding?
17 do ye not understand that all that is going into the mouth doth pass into the belly, and into the drain is cast forth?
18 but the things coming forth from the mouth from the heart do come forth, and these defile the man;
Young's Literal Translation is in the public domain.