John 17:7

[1.] That the Father had authority to give them: Thine they were. He did not give that which was none of his own, but covenanted that he had a good title. The elect, whom the Father gave to Christ, were his own in three ways:—First, they were creatures, and their lives and beings were derived from him. When they were given to Christ to be vessels of honour, they were in his hand, as clay in the hand of the potter, to be disposed of as God's wisdom saw most for God's glory. Secondly, They were criminals, and their lives and beings were forfeited to him. It was a remnant of fallen mankind that was given to Christ to be redeemed, that might have been made sacrifices to justice when they were pitched upon to be the monuments of mercy; might justly have been delivered to the tormentors when they were delivered to the Saviour. Thirdly, They were chosen, and their lives and beings were designed, for him; they were set apart for God, and were consigned to Christ as his agent. This he insists upon again (v. 7): All things whatsoever thou hast given me are of thee, which, though it may take in all that appertained to his office as Mediator, yet seems especially to be meant of those that were given him. "They are of thee, their being is of thee as the God of nature, their well-being is of thee as the God of grace; they are all of thee, and therefore, Father, I bring them all to thee, that they may be all for thee."

Now they have known that all things which thou gavest me, are from thee. That is, says St. Augustine,[3] they now know, and will know more perfectly hereafter, that I myself am from thee, or proceed from thee, and am sent by thee to redeem the world. (Witham)