Sirach 24:3

Ben Sira, Ecclesiasticus

1 Wisdom praises herself, and tells of her glory in the midst of her people. 2 In the assembly of the Most High she opens her mouth, and in the presence of his hosts she tells of her glory: 3 "I came forth from the mouth of the Most High, and covered the earth like a mist. 4 I dwelt in the highest heavens, and my throne was in a pillar of cloud. 5 Alone I compassed the vault of heaven and traversed the depths of the abyss.

Date: 195-175 B.C.E.
* Dates are based on scholarly estimates

Ambrose On the Christian Faith 1.17

If, then, we enquire into His natural pre-eminence, we find it to consist in being begotten. To deny that the Son of God is begotten [of God] is to deny that He is God's own Son, and to deny Christ to be God's own Son is to class Him with the rest of mankind, as no more a Son than any of the rest. If, however, we enquire into the distinctive property of His generation, it is this, that He came forth from God. For while, in our experience, to come out implies something already existent, and that which is said to come out seems to proceed forth from hidden and inward places, we, though it be presented but in short passages, observe the peculiar attribute of the Divine Generation, that the Son does not seem to have come forth out of any place, but as God from God, a Son from a Father, nor to have had a beginning in the course of time, having come forth from the Father by being born, as He Himself Who was born said: I came forth from the mouth of the Most High.

Date: 390-395 C.E.
* Dates are based on scholarly estimates