Charles Ellicott Commentary 1 Chronicles 11:10

"Now these are the chief of the mighty men whom David had, who showed themselves strong with him in his kingdom, together with all Israel, to make him king, according to the word of Jehovah concerning Israel." — 1 Chronicles 11:10 (ASV)

These also are the chief of the mighty men. —Rather, And these were the heads of the warriors (i.e., the chief warriors, other warriors of lower rank being enumerated in 1 Chronicles 12) who showed themselves strong in his support (with him, Daniel 10:21; Psalms 12:4), in the matter of his kingdom, in common with all Israel, in order to make him king (and maintain him as such: compare their exploits, noticed below). This description of the heroes is not given in Samuel, the connection there being different.

According to the word of the Lord concerning Israel. —Compare Note on 1 Chronicles 11:3. David was made king:

1. For his own sake. It was work for which he was best fitted, and a reward of his faithfulness.
2. For Israel’s sake: So he led them with a faithful and true heart (Psalms 78:70–72).