Mark 4:12

12 that 'seeing they may see, and not perceive; and hearing they may hear, and not understand; lest perhaps they should turn again, and their sins should be forgiven them.'"

Mark 4:12 In-Context

10 When he was alone, those who were around him with the twelve asked him about the parables.
11 He said to them, "To you is given the mystery of the kingdom of God, but to those who are outside, all things are done in parables,
12 that 'seeing they may see, and not perceive; and hearing they may hear, and not understand; lest perhaps they should turn again, and their sins should be forgiven them.'"
13 He said to them, "Don't you understand this parable? How will you understand all of the parables?
14 The farmer sows the word.
The Hebrew Names Version is in the public domain.