2 Samuel 19:40
Then the king went on to Gilgal, and Chimham went on with him: and all the people of Judah conducted the king, and also half the people of Israel.
Cross-reference
2 Samuel 19:11–15
Historical context
2 Sam 19:11-15 records David's plea to Judah to bring him back — the action in this verse directly follows that command.
2 Samuel 19:37
Historical context
2 Sam 19:37 introduces Chimham as Barzillai's replacement — this verse shows Chimham actually going with David.
2 Samuel 20:2
Contrast
2 Sam 20:2 shows Israel abandoning David for Sheba — contrasting the loyalty shown here by half of Israel.