Augustine of Hippo

"God is in the midst of her: she shall not be moved" [Psalm 46:5]. Let the sea rage, the mountains shake; "God is in the midst of her: she shall not be moved." What is, "in the midst of her"? That God stands in any one place, and they surround Him who believe in Him? Then is God circumscribed by place; and broad that which surrounds, narrow that which is surrounded? God forbid. …

Exposition on Psalm 46 ↗

Ambrose of Milan

By his resurrection at dawn, the Lord confers on us wonderful and heavenly helps. His resurrection dispelled the night and poured on us the light of day. As Scripture says, "Rise, O sleeper; arise from the dead, and Christ shall enlighten you." Consider here a mystery. Christ suffered in the evening, and according to the Old Law, the lamb is slain at evening. … In the evening of this world, when the light is failing, he is killed. …

Commentary On Twelve Psalms 46:14 ↗

Thomas Aquinas

"God is in the midst of it." Here the consolation from the divine presence is set forth. And first he sets forth the benefit of this presence. Second, its effects, at "It shall not be moved." He says therefore, "God is in the midst," namely, of the Church. 1 Cor. 14: "Truly declaring that God is among you." And he says "in the midst," to show that he is not a respecter of persons, as is said in Acts 10 and Eph. 6. For "the middle" is said of that which is equally distant from the extremes. …

Exposition on the Psalms of David ↗