What does 1 Peter teach about God’s judgment? On p. 804 of his Anchor Bible commentary on 1 Peter, John H. Elliott provides a helpful summary:
The judgment of God…is both inclusive (4:5-6) and impartial (1:17), involving the living and the dead, nonbelievers and believers everywhere. The honor or shame it brings will be meted out according to each one’s deeds (1:17) relative to God’s will and each one’s response to Jesus Christ (2:4-10; 3:16). All creatures (cf. 2:13) are accountable to God their Creator (4:19). This universality and impartiality of divine judgment is firmly accented in early Christian tradition and is stressed repeatedly in 1 Peter.