Romans 2:16
on that day when, according to my gospel, God will judge the secrets of men by Christ Jesus.
1 Corinthians 4:5
Therefore do not go on passing judgment before the time, but wait until the Lord comes who will both bring to light the things hidden in the darkness and disclose the motives of men's hearts. Then every man will receive his praise from God.
Hebrews 4:12-13
For the word of God is living and active, sharper than any two-edged sword, piercing even to the division of soul and spirit, of joints and marrow, and discerning the thoughts and intentions of the heart.
Revelation 2:23
And I will strike her children dead. And all the churches shall know that I am he who searches minds and hearts, and I will give to each of you according to your works.