This verb in passive voice means to be renewed or made new again. Both occurrences describe ongoing spiritual renewal. In 2 Corinthians 4:16, Paul declares that though the outer self is wasting away, the inner self ἀνακαινοῦται—is being renewed—day by day. Colossians 3:10 describes believers who have put on the new self τὸν ἀνακαινούμενον—which is being renewed—in knowledge after the image of its creator. Both emphasize progressive transformation—not a one-time event but continuous renewal by God's power, restoring believers toward their intended image.