1 Samuel 17:54

“And David took the head of the Philistine, and brought it to Jerusalem, etc.] After he had been introduced with it to Saul, and when he had passed through various cities in Israel, carrying the head in triumph; where he was congratulated by the women, who came out singing and dancing, and speaking highly in his commendation and praise: why he carried it to Jerusalem is not easy to say, this not being a royal city, nor was it wholly in the hands of the Israelites; part of it indeed was in the possession of Judah and Benjamin, but the stronghold of Zion was possessed by the Jebusites; and it is generally thought that it was to the terror of them that the head of Goliath was carried there. R.…”

“tent--the sacred tabernacle. David dedicated the sword of Goliath as a votive offering to the Lord.”

“Jerusalem - See Judges 1:8 note. His tent - Perhaps the tabernacle. David had neither tent nor house of his own. It would be quite in accordance with David’s piety that he should immediately dedicate to God the arms taken from the Philistine, in acknowledgment that the victory was not his own but the Lord’s (compare 1 Samuel 21:9). His tabernacle, meaning the tabernacle which he had pitched (2 Samuel 6:17; compare Acts 15:16). return to 'Top of Page'”

“17:54 Jerusalem became an Israelite city later, when David captured it from the Jebusites (2 Sam 5:6-7). Jerusalem was probably the final destination of Goliath’s head, after David had become king. But David might have taken it to Jerusalem earlier to intimidate the non-Israelite occupants.”

“took the head: Sa1 21:9; Exo 16:33; Jos 4:7, Jos 4:8 1 Kings (1 Samuel) 17:55”