What does the Bible say about sinners and repentance?

In Matthew 9:13, Jesus clearly states that he did not come to call the righteous, but sinners to repentance. This reflects the core of the gospel message — that salvation is extended to those who recognize their sinfulness and need for a Savior. Scriptures such as Acts 2:38 also emphasize the necessity of repentance as a response to the call of Christ. Throughout the Bible, we see examples of individuals who, despite their sinful pasts, received God's mercy and grace, highlighting the importance of repentance in the life of a believer.