Repentance is one of the cardinal doctrines of the Bible. It is an action on our part in response to God’s grace and because of our belief that Jesus is our Lord and Savior. Our repentance demonstrates that we believe God and His Word, for God’s Word plainly and simply teaches that we must repent: “Except ye repent, ye shall all likewise perish” (Luke 13:3). “Repent ye, and believe the gospel” (Mark 1:15). “I came not to call the righteous, but sinners to repentance” (Mark 2:17). “But now [God] commandeth all men every where to repent” (Acts 17:30). “But [God] is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance” (2 Peter 3:9). “And that repentance and remission of sins should be preached in his name among all nations, beginning at Jerusalem” (Luke 24:47). “Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost” (Acts 2:38). When we believe, we must repent. Repentance primarily means to have a change of mind and of heart. It consists of feeling sorry for our sins and asking God to forgive us of all our sins. Moreover, in repentance we confess with our mouths that Jesus is Lord, and in fulfilling this confession, we make an about-face and live according to His will.