For as the Father hath life in himself
Is the living God, the fountain of life, and is the author of life to all living creatures; or rather has eternal life in his mind, his heart, his counsel, and his covenant, and in his hands, for all his chosen ones, which seems to he the peculiar sense here:
so hath he given to the Son to have life in himself;
he hath not only made the purpose of it in him, and given the promise of it to him; but even eternal life itself, he has put into his hands, and secured it in him for them, ( 1 John 5:11 ) , to give it to as many as he has given him: and he does give it to all his sheep, so that not one of them shall perish; which shows that he and his Father are one, though not in person, yet as in affection, will and power, so in nature and essence. The Son has life in himself, essentially, originally, and inderivatively as the Father has, being equally the living God, the fountain of life, and donor of it, as he; and therefore this is not a life which he gives, or communicates to him; but eternal life is what the one gives, and the other receives, according to the economy of salvation settled between them: and hence it is, that all that hear Christ's voice spiritually shall live eternally; for these words are a reason of the former, and confirm the truth of them, as well as show the equality of the Son with the Father, in that he is equal to such a trust, as to have eternal life committed to him.