For as the Father has life in himself; so has he given to the Son to have life in himself;
All Commentaries on John 5:26 Go To John 5
Cornelius a Lapide
AD 1637
For as the Father, &c. To have life in Himself signifies three things1. To have life from Himself and from His own Essence, and from no other source. For the Essence of God is life, and His life is His Essence. God therefore essentially, and by His Essence, is essential, uncreated, and infinite life2. That God has life in Himself, is that He is the fountain of all life, of angels, men, and animals. As Euthymius says, To have life in Himself means that after the manner of a living fountain He is the Author of life, according to the words, "With Thee is the well of life" ( Psalm 36:10). 3. Which follows from the two previous meanings, to have life in Himself means to have life in His own power, to be the Lord of life to all things living, so that He according to His own good pleasure gives them life, preserves it, and takes it away. This makes plain the unity of Essence, i.e, of Deity, in the Father and the Son. For if the Son had a different Essence from the Father, then He would have life in another, that is to say, in the Father, who gave Him life. But now He hath life in Himself, i.e, in His own Divine Essence, which He hath altogether in common with the Father. So S. Chrysostom. "Behold," he says, "how they differ not in any respect whatsoever, save that the one is the Father, and the other the Son."
So hath He given also, &c In that He is the Son of God, and that according to the three ways just spoken of. As S. Augustine says, that His life might not have need of life, that He should not be understood to have life by way of participation: for if He had life by way of participation, He might, by losing the participation, become without life. Such doctrine concerning the Son accept not, think not, believe not. The Father therefore continues as life, the Son also continues as life. The Father is life in Himself, not from the Son: the Son is life in Himself, but from the Father.