What changes occur in a person after regeneration?

In Ezekiel 36:26, God promises to give His people a 'new heart' and a 'new spirit.' This transformation does not improve the old nature but instead imparts a new nature entirely. The regenerated heart is sensitive to God’s Word and produces a desire to worship Him sincerely. It recognizes the struggle of the flesh, but ultimately seeks to honor God, leading to a life that bears fruit in accordance with His will. This change allows believers to live by faith and not by sight, trusting in God’s mercy for their righteousness.