"Godly sorrow worketh repentance." — 2 Corinthians 7:10
Genuine, spiritual mourning for sin is the work of the Spirit of God. Repentance is too choice a flower to grow in nature's garden. Pearls grow naturally in oysters, but penitence never shows itself in sinners except divine grace works it in them. If thou hast one particle of real hatred for sin, God must have given it thee, for human nature's thorns never produced a single fig. "That which is born of the flesh is flesh."
Read the rest of Charles Spurgeon's Daily Devotion here.