1 Chronicles 12:1 lists the same mighty men who came to David at Ziklag, earlier in his career, supporting him as helpers of the war.

In 1 Chronicles 12:21, these mighty men help David against raiders, being valiant captains — a specific example of their support.

1 Chronicles 12:23 explicitly echoes 'according to the word of the LORD' as they come to make David king at Hebron.

In 1 Chronicles 12:38, all Israel came to Hebron with full intent to make David king — fulfilling the support described here.

In 1 Chronicles 28:1, David assembles 'the mighty men' among others at the end of his reign, showing their ongoing role.

1 Chronicles 19:8 mentions David sending Joab and 'all the host of the mighty men' into battle — the same group from 11:10.

In 2 Samuel 23:8, the same list of David's mighty warriors begins — this verse introduces the parallel account of their names.

In 1 Kings 1:8, David's mighty men refuse to support Adonijah's rebellion, showing their continued loyalty to David's kingship.

In 2 Samuel 3:17, Abner tells the elders they have been seeking David as king — the same movement to establish David's kingship.

In 2 Samuel 3:21, Abner promises to gather all Israel to make David king — the very support this verse describes.