Jesus did not hesitate to preach about topics that are largely avoided in today’s church. Sin, judgment, and repentance are unpopular but vital truths for believers and unbelievers. Twice Jesus says in Luke 13:1-9, “I tell you; but unless you repent, you will all likewise perish” (vv. 3, 5).
In the Bible, the word repent means “to change one’s mind.” The Bible also tells us that true repentance has fruit, that is — it will result in a change of actions. Having been compared to two sides of a coin, repentance and faith are distinct but inseparable.
Repentance is not a work of righteousness that we do to earn salvation (Titus 3:5). No one can repent and come to God unless God first convinces of the sin of unbelief (John 6:44; 16:7-11). Repentance is something God gives, and it is only possible because of his grace (Acts 5:31; 11:18; 2 Timothy 2:25). No one can repent unless God grants repentance. All of salvation, including repentance and faith, is a result of God drawing us, opening our eyes, and changing our hearts. God’s longsuffering leads us to repentance (2 Peter 3:9), as does his goodness and kindness (Romans 2:4).
The 1647 Westminster Confession of Faith (chapter 15, section 3-4) 3. Although repentance be not to be rested in as any satisfaction for sin, or any cause of the pardon thereof which is the act of God’s free grace in Christ; yet is it of such necessity to all sinners that none may expect pardon without it.