How do we know that repentance is granted?

Acts 11:18 confirms that repentance is a gift from God, indicating that it cannot be achieved through human effort. In Matthew 11:20-24, Jesus upbraids cities for not repenting after witnessing His miracles, highlighting humanity's inability to turn from sin without divine enablement. True repentance reflects a change of mind towards God and His glory, which is granted by the grace of God, not by human will or effort. Therefore, understanding that repentance is a divine gift helps believers recognize their dependency on God's grace.