As Jesus sat at table in the house, behold, many tax collectors and sinners came and sat down with Jesus and his disciples. And when the Pharisees saw this, they said to his disciples, “Why does your teacher eat with tax collectors and sinners?” But when he heard it, he said, “Those who are well have no need of a physician, but those who are sick. Go and learn what this means, ‘I desire mercy, and not sacrifice’ [Hosea 6:6]. For I came not to call the righteous, but sinners.” (Matthew 9:10-13)
St. John Damascene (d 780AD) composed an evening prayer in which he wonderfully expressed the joy and hope of Christians experiencing the grace of God’s salvation:
It is not wonderful if You have mercy upon the pure;
and it is not a great thing if You save the righteous,
but show the wonders of Your mercy upon me, a sinner!