For I have come down from heaven, not to do My own will, but to do the will of Him who sent Me.
38. For I came down from heaven. This is a confirmation of the preceding statement, that we do not seek Christ in vain. For faith is a work of God, by which he shows that we are his people, and appoints his Son to be the protector of our salvation. Now the Son has no other design than to fulfill the commands of his Father.
Whether this conference was with the Capernaites, in whose synagogue Christ now was, or with those who came from the other side of the sea, is not certain nor material; however, it is an instance of Christ's condescension that he gave them leave to ask him questions, and did not resent the interruption as an affront, no, not from his common hearers, though not his immediate followers.
Commenting on John 6:28-59
And this is the Father's will which hath sent me,.... This explains both who he was that sent him; the Father of him, and of his people; whose sending of him does not suppose any change of place, or inequality between them, or disrespect unto him, or compulsion of him, but agreement between them, and love to the persons on whose account he was sent...