Jamieson, Fausset and Brown on Joshua 23:2

2. Joshua called for all Israel--The clause which follows seems to restrict this general expression as applicable only to the officers and representatives of the people. The place of assembly was most probably Shiloh. The occasion of convening it was the extreme age and approaching death of the venerable leader; and the purport of this solemn address was to animate the chosen people and their posterity to a faithful and unswerving continuance in the faith and worship of the God of Israel.