Albert Barnes Commentary Psalms 105:44

"And he gave them the lands of the nations; And they took the labor of the peoples in possession:" — Psalms 105:44 (ASV)

And gave them the lands of the heathen—Of the “nations” of the land of Palestine, according to his promise. See the notes at Psalm 78:55.

And they inherited the labor of the people—The fruit of their labors. See Deuteronomy 6:10-11; Joshua 13:7.