Psalm 62:12
9 Men are nothing but a mere breath; human beings are unreliable. When they are weighed in the scales, all of them together are lighter than air. 10 Do not trust in what you can gain by oppression. Do not put false confidence in what you can gain by robbery. If wealth increases, do not become attached to it. 11 God has declared one principle; two principles I have heard: God is strong, 12 and you, O Lord, demonstrate loyal love. For you repay men for what they do.
Revelation 20:12
11 Then I saw a large white throne and the one who was seated on it; the earth and the heaven fled from his presence, and no place was found for them. 12 And I saw the dead, the great and the small, standing before the throne. Then books were opened, and another book was opened—the book of life. So the dead were judged by what was written in the books, according to their deeds.
Notes and References
"... The Old Testament and Judaism stressed that God was righteous and would reward his people (e.g., Genesis 15:1; Psalm 18:20; 19:11; Isaiah 49:4; 4 Ezra). That God would give each person according to his or her works was also Old Testament teaching (e.g., Psalm 62:12; see Revelation 20:12) ..."
Keener, Craig S. The IVP Bible Background Commentary: New Testament (p. 776) InterVarsity Press, 2014