Jas 1:18

“The birth here applies in the first instance to the Son and then by extension to the creatures. For to him belong truth and consubstantiality with God, whereas to the creatures belong honor and inheritance. The fact that the same name is used does not mean that the same honor is given, nor should things which are said by extension be taken to mean that they apply in the first instance as well. By "first fruits" James means that we are the first and most highly honored. For by "creatures" he means the visible creation, of which humanity is the most highly honored part.”

“Of His own will He brought us forth by the word of truth. And the Lord in the Gospel: "You have not chosen me, but I have chosen you" (John XV). And in the prophet Hosea: "I will love them freely" (Hosea XIV). Therefore, what he had said, that every good and every perfect gift comes from God, he confirms by adding consequently, that not by our merits, but by the benefit of His will, through the water of regeneration, He has transformed us from children of darkness into children of light.”

“That we might be a kind of firstfruits of His creatures. Lest we imagine that by saying, "He begot us," we become what He is, this demonstrates that a certain preeminence is granted to us in creation by this adoption. Indeed, some have translated the verses as follows: "Of His own will He begot us with the word of truth, that we should be a kind of firstfruits of His creatures." That is, that we should be better than the other creatures we see. For the law commanded to consecrate the firstfruits of crops or animals to the Lord, and the firstfruits of gold and silver were to be offered for the work of the tabernacle, which means the best of the metals. And of the ancient people of God, the prophet Jeremiah said: "Israel is holy to the Lord, the firstfruits of His harvest" (Jer. II).”

“He said "of His own will" because there are people who, by the instigation of the devil, reason that the world came together as if by chance. Above he said: "with whom there is no variation," and thereby showed that the Divinity is unchangeable; now he adds: "of His own will He brought us forth." If we came into being, then it is evident that we are not unchangeable, for is it possible that what came from non-being into being through change should be unchangeable? And lest anyone, on account of the word "brought forth," should think that God begot the Son in the same way as us, the apostle added: "by the word of truth," for according to the words of John the Theologian: "all things were made through Him" (John 1:3), that is, through the Word of truth; therefore, if we came into being through the Word, we are not of the same nature as Him from Whom we derive our being. The words "a kind of firstfruits" signify preeminence and the highest dignity, and by "creatures" he means the visible creation.”

“He is called the Father of the age to come, for He Himself is the Principle of those influences by which we will live in the future. As James writes: "Every good gift and every perfect gift is from above, coming down from the Father of Lights." And later: "Of His own will He has begotten us by the word of truth, that we might be, as it were, the first-fruits of His creatures." We are now the beginning of creatures, but then we shall be creatures in full.”