Adam Clarke on Ezekiel 37:9

Prophesy unto the wind - רוח ruach. Address thyself to the soul, and command it to enter into these well-organized bodies, that they may live.

Come from the four winds - Souls, come frown all parts where ye are scattered; and reanimate these bodies from; which ye have been so long separated. The four winds signify all parts - in every direction. Literally it is, "Souls, come from the four souls;" "Breath, come from the four breaths;" or, "Wind, come from the four winds." But here רוח ruach has both of its most general meanings, wind or breath, and soul.