'Assembled' in the Bible

So David assembled all Israel together, from the Shihor the brook of Egypt even unto the entrance of Hamath, to bring the ark of God from Kiriath-jearim.

And David assembled all Israel at Jerusalem, to bring up the ark of Jehovah unto its place, which he had prepared for it.

And David assembled all the princes of Israel, the princes of the tribes, and the captains of the companies that served the king by course, and the captains of thousands, and the captains of hundreds, and the rulers over all the substance and possessions of the king and of his sons, with the officers, and the mighty men, even all the mighty men of valor, unto Jerusalem.