How do we know that God’s grace is sufficient for sinners?

The sufficiency of God's grace for sinners is vividly depicted in the parables of Luke 14. Here, Jesus emphasizes that He came not to call the righteous, but sinners to repentance (Luke 5:32). The essence of the gospel is that it is the broken, the lame, and the blind who find refuge in Christ. These individuals, recognizing their total reliance on God's mercy, become recipients of His grace. This message of grace is central to the Christian faith, illustrating that salvation is given freely to those who cannot earn it.