Proverbs 8:30

"And I delighted every day," etc. Saying "playing," he means rejoicing. Therefore, he was playing before the Father every day, because, as the prophet says, "From the beginning, from the days of eternity" (Mic. 5), he was rejoicing to be one with the Father. He was at all times playing in the world, for even when the times of the world and creation began to exist, he remained the Son, which he was in the Father. This is said so that no one would claim that he began with creatures and times. And his delights are to be with the sons of men, because he desires to rest in our soul, and to lead us by the grace of good merits to the vision of himself.

We have that general seemliness; for God made the beauty of this world. We have it also in its parts; for when God made the light, and marked off the day from the night, when he made heaven, and separated land and seas, when he set the sun and moon and stars to shine upon the earth, he approved of them all one by one. Therefore this comeliness, which shone forth in each single part of the world, was resplendent in the whole, as the book of Wisdom shows, saying, "I existed, in whom he rejoiced when he was glad at the completion of the world." Likewise also in the building up of the human body each single member is pleasing, but the right adjustment of the members all together delights us far more. For thus they seem to be united and fitted into one harmonious whole.

We can therefore imagine no moment whatever when that power was not engaged in acts of well-doing. Whence it follows that there always existed [in God's wisdom] objects for this well-doing, namely, God's works or creatures, and that God, in the power of his providence, was always dispensing his blessings among them by doing them good in accordance with their condition and deserts. It follows plainly from this, that at no time whatever was God not creator, nor benefactor, nor providence.…God the Father always existed, and he always had an only-begotten Son, who at the same time, according to the explanation we have given above, is called wisdom. This is that wisdom in whom God delighted when the world was finished, in order that we might understand from this that God ever rejoices. In this wisdom, therefore, who ever existed with the Father, the creation was always present in form and outline, and there was never a time when the prefiguration of those things which hereafter were to be did not exist in wisdom.