Yes, God personally and directly creates each soul and infuses it into the body.

We must believe that the human race is descended from Adam and Eve, our first parents, and that Adam’s and Eve’s souls were directly created by God.

Husbands and wives cooperate with God in the formation of the human body. But the soul, which makes that body a human being, is directly created by God and is given at the moment of conception within the mother’s womb.