Diognetus- Diognetus was the recipient of this letter, but it is not known who he was. Nor is the author known, nor the date it was written. Speculation varies from 130 to 300 but generally it is thought to be from late in the second century.
The author makes reference to the Trinity on a couple of occasions, which doctrine was not fixed or accepted till the third century at the earliest.
On the contrary, the omnipotent Creator of all, the invisible God himself, established among men the truth and the holy, incomprehensible word from heaven and fixed it firmly in their hearts, not, as one might imagine, by sending to men some subordinate, or angel, or ruler or one of those who manage earthly matters, or one of those entrusted with the administration of things in heaven, but [GOD almighty sent instead] the Designer and Creator of the universe himself, by whom he created the heavens, by whom he enclosed the sea within its proper bounds, whose mysteries all the elements faithfully observe, from whom the sun has received the measure of the daily courses to keep, whom the moon obeys as he commands it to shine by night, whom the stars obey as they follow the course of the moon, by whom all things have been ordered and determined and placed in subjection, including the heavens and the things in the heavens, the earth and the things in the earth, the sea and the things in the sea, fire, air, abyss, the things in the heights, the things in the depths, the things in between- this one he sent to them!
But perhaps he sent him, as a man might suppose, to rule by tyranny, fear, and terror? Certainly not! On the contrary, he sent him in gentleness and meekness, as a king might send his son who is king; he sent him as God; he sent him as a man to men. When he sent him, he did so as one calling, not pursuing; when he sent him, he did so as one loving, not judging. For he will send him as a judge, and who will endure his coming?... [from 7:2-6]
When one recognizes that this idea of Yeshua being the creator of the universe is from a time quite distant from the writing of the Christian Scriptures (the New Testament), he will then discover that this letter to Diognetus must be quite late indeed.
The reference from the Christian Scriptures which most people think of in which Yeshua is mentioned as creator, is in Paul's letter to the Colossians.
COLOSSIANS 1:16 For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers: all things were created by him, and for him:
Clearly, the unbiased reader will see that Paul is not saying that Yeshua created the universe itself, but rather and plainly that He created certain thrones, dominions, principalities and powers in heaven and earth. Paul could not be clearer nor more specific.