John Gill Commentary 2 Chronicles 1:3

"So Solomon, and all the assembly with him, went to the high place that was at Gibeon; for there was the tent of meeting of God, which Moses the servant of Jehovah had made in the wilderness." — 2 Chronicles 1:3 (ASV)

So Solomon, and all the congregation with him, went to the high
place that was at Gibeon
They agreed to his motion, and went with him thither, see (1 Kings 3:4)

for there was the tabernacle of the congregation of God, which Moses
the servant of the Lord had made in the wilderness :
by the Lord's direction; where was also the altar of the Lord, and so most proper to offer sacrifice on, which was what Solomon went thither to do; see (1 Chronicles 21:29) .