Shouldest know his will - His will in the plan of salvation, and in regard to your future life.

And see that Just One - The Messiah. See the notes on Acts 3:14. As Paul was to be an apostle, and as it was the special office of an apostle to bear witness to the person and deeds of the Lord Jesus (see the notes on Acts 1:21-22), it was necessary that he should see him, that thus he might be a competent witness of his resurrection.

Shouldest hear the voice of his mouth - Shouldst hear and obey his commands.

And see that Just One - The Lord Jesus, called the Just One, in opposition to the Jews, who crucified him as a malefactor: see the note on Acts 7:52. This is an additional proof that Jesus Christ did actually appear unto Saul of Tarsus.

And he said, the God of our fathers hath chosen thee,.... From all eternity, in his everlasting purposes and decrees; or "he hath taken thee into his hand"; in order to form, and fit, and qualify him for his service; and may design both his call by grace, and to apostleship. The apostle represents Ananias as speaking of God, as the God of the Jewish fathers, of Abraham, Isaac, and Jacob, to show that the Christian doctrine was not contrary to the faith of the one God of Israel; nor did it introduce any other, or any new deity. The ends of this choice or separation were,

that thou shouldest know his will; his revealed will, concerning the salvation of men by Jesus Christ, which is no other than the Gospel, of which the apostle had been entirely ignorant; for though he knew the will of God, as revealed in the law, or his will of command, yet not spiritually; and he was altogether a stranger, till now, to God's will, way, and method of saving sinners by Christ, of justifying them by his righteousness, and of pardoning their sins through his blood, and of giving them eternal life by him; and the knowledge of this he came at by the spirit of wisdom and revelation, in consequence of his being chosen and called:

and see that just One: Jesus Christ the righteous, who is both as he is God, and as he is man, and also as he is Mediator, having faithfully discharged his office, and performed his engagements; him the apostle saw, both with the eyes of his body, when he met him in the way, and called unto him, and with the eyes of his understanding beholding his beauty, fulness, and suitableness as a Saviour; the former of these was what many kings, prophets, and righteous men desired: and the latter is what is inseparably connected with eternal life and salvation.

And shouldest hear the voice of his mouth; both his human voice in articulate sounds, when he spoke to him in the Hebrew tongue, as in Acts 22:7 and the voice of his Gospel, of which he appeared to make him a minister; which is a voice of love, grace, and mercy, of peace, pardon, righteousness, and salvation, and is very powerful when accompanied by the Spirit, and is soul charming, alluring, and comforting.

The God of our fathers - Just One

A conciliatory touch in Paul's speech, mentioning both God and Christ by their Jewish names. Compare Acts 3:14; Acts 7:52.

Hath chosen (προεχειρίσατο)

See on Acts 3:20. Better, as Rev., appointed.

And he said, The God of our fathers hath chosen thee, that thou shouldest know his will, and see that Just One, and shouldest hear the voice of his mouth.

22:14 The God of our fathers. Of the Jews.

See that Just One. The Lord Jesus Christ. It was necessary that Paul should see the Lord in order to become a witness. He refers more than once to the fact that he had seen the risen Christ (1Co 9:1 15:8).

14. that thou shouldest . see that-"the"

Just One-compare Ac 3:14; 7:52.

hear the voice of his mouth-in order to place him on a level with the other apostles, who had "seen the [risen] Lord."

22:12-21 The apostle goes on to relate how he was confirmed in the change he had made. The Lord having chosen the sinner, that he should know his will, he is humbled, enlightened, and brought to the knowledge of Christ and his blessed gospel. Christ is here called that Just One; for he is Jesus Christ the righteous. Those whom God has chosen to know his will, must look to Jesus, for by him God has made known his good-will to us. The great gospel privilege, sealed to us by baptism, is the pardon of sins. Be baptized, and wash away thy sins; that is, receive the comfort of the pardon of thy sins in and through Jesus Christ, and lay hold on his righteousness for that purpose; and receive power against sin, for the mortifying of thy corruptions. Be baptized, and rest not in the sign, but make sure of the thing signified, the putting away of the filth of sin. The great gospel duty, to which by our baptism we are bound, is, to seek for the pardon of our sins in Christ's name, and in dependence on him and his righteousness. God appoints his labourers their day and their place, and it is fit they should follow his appointment, though it may cross their own will. Providence contrives better for us than we do for ourselves; we must refer ourselves to God's guidance. If Christ send any one, his Spirit shall go along with him, and give him to see the fruit of his labours. But nothing can reconcile man's heart to the gospel, except the special grace of God.