They have known - They have been taught that and have believed it.

Hast given me - This refers, doubtless, to the doctrine of Christ, John 17:8. They are assured that all my instructions are of God.

Now they have known,.... The Syriac version reads it "I have known"; and so the Persic and Gothic versions, contrary to most copies and other versions, which read, as we render, "they have known", that is, the disciples and apostles of Christ:

that all things whatsoever thou hast given me; all temporal things, the world and the fulness of it; all power in heaven, and in earth, or a power of disposing of all things for his own service, as Mediator; all spiritual things, the covenant of grace, with all its blessings and promises, the Spirit of God, with all his, gifts and graces, a fulness of all grace for his people, yea, eternal life and glory; and everything relating to his mediatorial office and character, power to perform miracles, knowledge and wisdom to preach the Gospel, strength to procure the salvation of his people; every thing to qualify him for the government of church and the judgment of the world:

are of thee; owing to his good will and pleasure, by his appointment and constitution, as an instance of love to him, and that he might, as man, and Mediator, be honoured, and in all things have the pre-eminence, and all for the good of his chosen ones: now the knowledge of this by his disciples, must greatly confirm the mission of Christ, render him very suitable to them, cause them to entertain a greater esteem for him, lead them into some admiring views of the grace of God, in giving so much into Christ's hands for them, and engage them the more cheerfully to obey his commands.

Now they have known that all things whatsoever thou hast given me are of thee.

17:7 Now they know that all things - Which I have done and spoken, are of thee - And consequently right and true.

17:6-10. Christ prays for those that are his. Thou gavest them me, as sheep to the shepherd, to be kept; as a patient to the physician, to be cured; as children to a tutor, to be taught: thus he will deliver up his charge. It is a great satisfaction to us, in our reliance upon Christ, that he, all he is and has, and all he said and did, all he is doing and will do, are of God. Christ offered this prayer for his people alone as believers; not for the world at large. Yet no one who desires to come to the Father, and is conscious that he is unworthy to come in his own name, need be discouraged by the Saviour's declaration, for he is both able and willing to save to the uttermost, all that come unto God by him. Earnest convictions and desires, are hopeful tokens of a work already wrought in a man; they begin to evidence that he has been chosen unto salvation, through sanctification of the Spirit and belief of the truth. They are thine; wilt thou not provide for thine own? Wilt thou not secure them? Observe the foundation on which this plea is grounded, All mine are thine, and thine are mine. This speaks the Father and Son to be one. All mine are thine. The Son owns none for his, that are not devoted to the service of the Father.