Philo Judaeus De Cherubim 86

[86] And the doctrine is this: God alone keeps festival in reality, for he alone rejoices, he alone is delighted, he alone feels cheerfulness, and to him alone is it given, to pass an existence of perfect peace unmixed with war. He is free from all pain, and free from all fear; he has no participation in any evils, he yields to no one, he suffers no sorrow, he knows no fatigue, he is full of unalloyed happiness; his nature is entirely perfect, or rather God is himself the perfection, and completion, and boundary of happiness, partaking of nothing else by which he can be rendered better, but giving to every individual thing a portion of what is suited to it, from the fountain of good, namely, from himself; for the beautiful things in the world would never have been such as they are, ¹ if they had not been made after an archetypal pattern, which was really beautiful, the uncreate, and blessed, and imperishable model of all things.