Albert Barnes Commentary Psalms 107:36

"And there he maketh the hungry to dwell, That they may prepare a city of habitation," — Psalms 107:36 (ASV)

And there he maketh the hungry to dwell — Those who were in want; those who would have perished. It is not necessary to refer this to any particular case. It is a general statement, pertaining to changes which God makes on the earth, as great as if he should thus convert a desert into a fruitful field — a barren waste into a land abounding in springs of water; as if he should conduct there a company of famished men, and provide for them food in abundance.

That they may prepare a city for habitation — A permanent dwelling-place for man.