John Gill Commentary 1 Kings 8:1

"Then Solomon assembled the elders of Israel, and all the heads of the tribes, the princes of the fathers` [houses] of the children of Israel, unto king Solomon in Jerusalem, to bring up the ark of the covenant of Jehovah out of the city of David, which is Zion." — 1 Kings 8:1 (ASV)

Then Solomon assembled the elders of Israel
The judges in the several cities, or senators of the great sanhedrim, as others; though it is a question whether as yet there was such a court:

and all the heads of the tribes ;
the princes of the twelve tribes:

the chief of the fathers of the children of Israel ;
the principal men of the ancient families in every tribe:

unto King Solomon in Jerusalem ;
these he summoned together to himself there where the temple was built:

that they might bring up the ark of the covenant of the Lord out of the
city of David, which is Zion ;
from where David brought it, when he had taken that fort, so called, and dwelt in it; and from this mountain Solomon proposed to bring it up to the temple, on a higher mountain, Moriah, not far from one another.