Jamieson-Fausset-Brown on 2 Samuel 24:23
All these things did Araunah, as a king, give--Indicating, as the sense is, that this man had been anciently a heathen king or chief, but was now a proselyte who still retained great property and influence in Jerusalem, and whose piety was evinced by the liberality of his offers. The words, "as a king," are taken by some to signify simply, "he gave with royal munificence."
Adam Clarke on 2 Samuel 24:23
As a king, give unto the king - Literally, All these did King Araunah give unto the king. That there could not be a king of the Jebusites on Mount Moriah, is sufficiently evident; and that there was no other king than David in the land, is equally so: the word המלך hammelech, "the king," given here to Araunah, is wanting in the Septuagint, Syriac, and Arabic; in three of Kennicott's and De Rossi's MSS., and in the parallel place in Chronicles: and, it is very probable, never made a part of the text. Perhaps it should be read, All these did Arnunah give unto the king.
There is, however, a difficulty here. David had taken the fortress of the Jebusites many years before; yet it is evident that…
Read the whole note in the consoleJohn Gill on 2 Samuel 24:23
All these things did Araunah, as a king, give unto the king,.... The note of similitude as is not in the text; from whence some have thought he was king of the Jebusites before Jerusalem was taken out of their hands, or however was of the royal race, perhaps the son and heir of the then king at that time; or he has this title given him, because of his great liberality, having the spirit of a prince in him, even of a king; so Ulysses addressed Antinous, saying, thou art like a king, and therefore should give more largely than others (h):
and Araunah said unto the king, the Lord thy God accept thee; thine offering with a good will; with pleasure and delight, as the Targum; that so the plague…
Read the whole note in the consoleKeil & Delitzsch on 2 Samuel 24:19–end