Before the Lord - Abiathar and Zadok the priests were both with David, and the tabernacle and altar may have been at Hebron, though the ark was at Kirjath-jearim.
Related Commentaries of 2 Samuel 5:3
2 Samuel 5:3
3 So all the elders of Israel came to the king to Hebron; and king David made a league with them in Hebron before the LORD: and they anointed David king over Israel.