Jeremiah 17:9-10

17:9 The human mind is more deceitful than anything else.

It is incurably bad. Who can understand it?

17:10 I, the Lord, probe into people’s minds.

I examine people’s hearts.

I deal with each person according to how he has behaved.

I give them what they deserve based on what they have done.

John 2:25

2:25 He did not need anyone to testify about man, for he knew what was in man.

Revelation 2:23

2:23 Furthermore, I will strike her followers with a deadly disease, and then all the churches will know that I am the one who searches minds and hearts. I will repay each one of you what your deeds deserve.