In him was life, and the life was the light of men.
4. In him was life. Hitherto he has taught us, that by the Speech of God all things were created. He now attributes to him, in the same manner, the preservation of those things which had been created, as if he had said, that in the creation of the world there was not merely displayed a sudden exercise of his power, which soon passed away...
Austin says (de Civitate Dei, lib. 10, cap. 29) that his friend Simplicius told him he had heard a Platonic philosopher say that these first verses of St. John's gospel were worthy to be written in letters of gold. The learned Francis Junius, in the account he gives of his own life, tells how he was in his youth infected with loose notions in religion...
Commenting on John 1:1-5
In him was life,.... The Persic version reads in the plural number, "lives". There was life in the word with respect to himself; a divine life, the same with the life of the Father and of the Spirit; and is in him, not by gift, nor by derivation or communication; but originally, and independently, and from all eternity: indeed he lived before his incarnation as Mediator, and Redeemer.