The will is moved by some apprehension. But God acts by willing.
Every agent acts in so far as it has within it something corresponding to the effect to be produced.
But in every voluntary agent, as such, what corresponds to the effect to be produced is some intellectual presentation of the same. Every voluntary agent therefore produces its effect according to the mode of intellectual operation proper to itself. But God acts by willing, and therefore it is by the wisdom of His intellect that he brings things into being. The function of wisdom is to set things in order. But it is proper to intelligence alone to know the mutual relations and proportions of things.