2 Samuel 19:20
For thy servant doth know that I have sinned: therefore, behold, I am come the first this day of all the house of Joseph to go down to meet my lord the king.
Cross-reference
2 Samuel 19:9
Contrast
Second Samuel 19:9 shows the people debating David's return — Shimei's initiative as first to come contrasts with their indecision.
2 Samuel 16:5
Historical context
Second Samuel 16:5 recounts Shimei cursing David — here he confesses that same offense, showing repentance.