See the notes on Acts 9:17-18.

And one Ananias, a devout man according to the law,.... The Alexandrian copy, and Vulgate Latin version, read only, "a man according to the law"; one whose walk, life, and conversation, were agreeable to it: a strict observer of the law of Moses, both moral and ceremonial: he not only lived a holy life and conversation, according to the moral law, but he religiously and devoutly attended to the rituals of the ceremonial law; and this part of his character the apostle chose to mention, as what would recommend him to the notice of the Jews he now addressed: for though he was a disciple, a believer in Christ, yet as many of the believing Jews did, so he strictly observed the rituals of the law. The Ethiopic version adds, "who was of the apostles"; one of that number, and in that office, which is nowhere said that he was; and had he, it would not have been agreeable to the apostle's design to have mentioned it; and he is said to be one of the seventy disciples, and bishop or pastor of the church at Damascus; See Gill on Luke 10:1. Of this Ananias, his name and character; see Gill on Acts 9:10.

Having a good report of all the Jews that dwelt there: that is, at Damascus, as the Ethiopic version reads; and so do the Complutensian edition, the Alexandrian copy, and several other copies; for though he was a Christian, yet being not only a man of an unblemished life and conversation, but zealous and devout in the observance of the ceremonial law, was very much interested in the affections and esteem of the Jews.

A devout man, etc

In Acts 9:10, he is called a disciple. Paul here "affirms that he was not introduced to Christianity by an opponent of Judaism, but by a strict Jew" (Gloag).

And one Ananias, a devout man according to the law, having a good report of all the Jews which dwelt there,

22:12 One Ananias, a devout man. We are told he was a disciple in the account of Ac 9:10. Though a disciple, he kept the law strictly.

22:12 A devout man according to the law - A truly religious person, and though a believer in Christ, yet a strict observer of the law of Moses.

12. Ananias, a devout man, according to the law, having a good report of all the Jews which dwelt there-One would not know from this description of Ananias that he was a Christian at all, the apostles object being to hold him up as unexceptionable, even to the most rigid Jews.

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.