Gregory the Dialogist

For when He hath accomplished His will in me, there are many other such things with Him. But it is well to put the question amidst these words, and to say, 'O blessed Job, wherefore in the midst of such scourges dost thou dread still further afflictions?' Thou art already encompassed with sorrows, by innumerable calamities thou art already straitly beset. Misfortune is to be apprehended, which is not yet entered upon. Thou being in the midst of such great sorrow, what dost thou apprehend? …

Morals on the Book of Job, Book XVI ↗

Thomas Aquinas

Moreover, sometimes especially in the case of a wise man it happens he has ruled his own will according to his own virtue but cannot do anything else. But he disproves this is true in God when he says, "When he has accomplished his will in me, and I am before him like many other similar things are before him," as if to say: The reason that he does not bring more adversity against me, is not because he cannot do more, but because he does not will to.

Commentary on Job ↗