Mark 7:18

and he saith to them, 'So also ye are without understanding! Do ye not perceive that nothing from without entering into the man is able to defile him?

Isaiah 28:9-10

By whom doth He teach knowledge? And by whom doth He cause to understand the report? The weaned from milk, the removed from breasts,

Jeremiah 5:4-5

And I -- I said, 'Surely these are poor, They have been foolish, For they have not known the way of Jehovah, The judgment of their God.

Matthew 15:16-17

And Jesus said, 'Are ye also yet without understanding?

Matthew 16:11

how do ye not understand that I did not speak to you of bread -- to take heed of the leaven of the Pharisees and Sadducees?'

Mark 4:13

And he saith to them, 'Have ye not known this simile? and how shall ye know all the similes?

Luke 24:25

And he said unto them, 'O inconsiderate and slow in heart, to believe on all that the prophets spake!

John 3:10

Jesus answered and said to him, 'Thou art the teacher of Israel -- and these things thou dost not know!

1 Corinthians 3:2

with milk I fed you, and not with meat, for ye were not yet able, but not even yet are ye now able,

Hebrews 5:11

concerning whom we have much discourse and of hard explanation to say, since ye have become dull of hearing,

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