Charles Ellicott Commentary Joshua 23:4

"Behold, I have allotted unto you these nations that remain, to be an inheritance for your tribes, from the Jordan, with all the nations that I have cut off, even unto the great sea toward the going down of the sun." — Joshua 23:4 (ASV)

Behold, I have divided unto you by lot these nations that remain. — Here, as in Joshua 13:1-7, and afterwards, in Judges 2:23, the preliminary and partial nature of the conquest achieved by Joshua is distinctly recognized. He gave Israel the land to possess, and gave them the vantage ground from which they might possess it. In Joshua 23:4-5 he instructs them to continue the work which he had begun.