Thomas Aquinas

There are also some who in adversity fall into a condition of doubt as to whether this happened from divine judgment. As to these he says, "Your words have upheld the tottering." There also are some who sustain a small adversity but under great adversity fall as crushed by a heavy burden. For these he says, "and you have strengthened those with trembling knees," namely, with your counsels, for the knees of a man tremble when he carries a great weight. …

Commentary on Job ↗