What does the Bible say about growing in the image of Christ?

Scripture emphasizes the importance of growing into the image of Christ, as seen in Romans 8:28-29, where Paul explains that those called according to God's purpose are predestined to be conformed to the image of His Son. This transformation is not merely a command from outside but springs from the believer's heart, where God instills new desires. Believers are invited to imitate Christ, as outlined in 1 Corinthians 11:1, and this growth is a work initiated by the Holy Spirit that progresses toward ultimate resemblance to Christ's holiness and character.