Luke 12:1-2
About this time, while a crowd of many thousands had assembled, [so large that] people were trampling on one another, Jesus first began telling His disciples, "Watch out for the leavening [effect] of the Pharisees, which is hypocrisy.
Romans 2:16
This will be done on the day when God judges the secrets of men's [hearts] through Christ Jesus, according to [the teaching of] my Gospel.
1 Corinthians 4:5
So, do not judge anything until the appointed time, when the Lord returns [i.e., to do the judging]. He will both shed light on the hidden things done in the dark and make known the motives of people's hearts. Then each person [i.e., who deserves it] will receive praise from God.
Hebrews 4:12-13
For God's word is alive and active and sharper than any double-edged sword. It penetrates [deep enough] even to divide [a person's] soul [from his] spirit, and his joints [from his] bone marrow [Note: This is figurative language describing the penetrating effect of God's word into a person's spiritual, inner being] and is able to judge the thoughts and intentions of a person's heart.
1 John 3:20
But, if our hearts condemn us [for not demonstrating God's love for others], surely God, who is greater than our hearts [will also condemn us], because He knows all things.
Revelation 20:12
And I saw dead people, the most important and the least significant ones, standing in front of the throne, and books were opened. Then another book was opened, which is the book of life [Note: This refers to a record of those to whom God has granted never ending life]. And these dead people [i.e., who have now been resurrected] were judged according to their deeds, based on what was recorded in the books.