Job 33:14

For God speaketh once, and twice, and man perceiveth it not --

Psalm 62:11

Once hath God spoken, twice have I heard this, that strength belongeth unto God.

Job 40:5

Once have I spoken, and I will not answer; yea twice, but I will proceed no further.

2 Chronicles 33:10

And Jehovah spoke to Manasseh and to his people; but they did not hearken.

Proverbs 1:24

Because I have called, and ye refused; I have stretched out my hand, and no one regarded;

Proverbs 1:29

Because they hated knowledge, and did not choose the fear of Jehovah;

Isaiah 6:9

And he said, Go; and thou shalt say unto this people, Hearing ye shall hear and shall not understand, and seeing ye shall see and shall not perceive.

Mark 8:17-18

And Jesus knowing it, says to them, Why reason ye because ye have no bread? Do ye not yet perceive nor understand? Have ye your heart yet hardened?

Luke 24:25

And he said to them, O senseless and slow of heart to believe in all that the prophets have spoken!

John 3:19

And this is the judgment, that light is come into the world, and men have loved darkness rather than light; for their works were evil.

Job 33:29

Lo, all these things worketh God twice, thrice, with man,

Matthew 13:14

and in them is filled up the prophecy of Esaias, which says, Hearing ye shall hear and shall not understand, and beholding ye shall behold and not see;

Treasury of Scripture Knowledge

Summary

For God speaketh once, yea twice, yet man perceiveth it not.

Bible References

God

Job 40:5
Once have I spoken, and I will not answer; yea twice, but I will proceed no further.
Psalm 62:11
Once hath God spoken, twice have I heard this, that strength belongeth unto God.

Perceiveth

2 Chronicles 33:10
And Jehovah spoke to Manasseh and to his people; but they did not hearken.
Proverbs 1:24
Because I have called, and ye refused; I have stretched out my hand, and no one regarded;
Isaiah 6:9
And he said, Go; and thou shalt say unto this people, Hearing ye shall hear and shall not understand, and seeing ye shall see and shall not perceive.
Matthew 13:14
and in them is filled up the prophecy of Esaias, which says, Hearing ye shall hear and shall not understand, and beholding ye shall behold and not see;
Mark 8:17
And Jesus knowing it, says to them, Why reason ye because ye have no bread? Do ye not yet perceive nor understand? Have ye your heart yet hardened?
Luke 24:25
And he said to them, O senseless and slow of heart to believe in all that the prophets have spoken!
John 3:19
And this is the judgment, that light is come into the world, and men have loved darkness rather than light; for their works were evil.