John the Apostle
John 17:2ESV·traditional attribution

since you have given him authority over all flesh, to give eternal life to all whom you have given him.

John Calvin Reformed @genevareformer

2. As thou hast given him. He again confirms the statement, that he asks nothing but what is agreeable to the will of the Father; as it is a constant rule o prayer not to ask more than God would freely bestow; for nothing is more contrary to reason, than to bring forward in the presence of God whatever we choose.

Matthew Henry Presbyterian @wholebiblehenry

Here we have, I. The circumstances of this prayer, Joh 17:1. Many a solemn prayer Christ made in the days of his flesh (sometimes he continued all night in prayer), but none of his prayers are recorded so fully as this. Observe, 1.

Commenting on John 17:1-5

John Gill Reformed Baptist @doctorgill

As thou hast given him power over all flesh,.... All men, in distinction from angels; and these as fallen, as weak, frail, sinful, and mortal creatures; men of every nation, Jew or Gentile, and of every character, elect or non-elect: not but that he has also a power over angels; nor is his power over men limited to their "flesh" or bodies, but reaches to...