(19) Lord, they know that I imprisoned . .--This was said at the time, and it was repeated now. as with a two-fold bearing. It was partly an extenuation of the unbelief of the people. They were, as he had once been, sinning in ignorance, which, though as yet unconquered, was not invincible. Partly it expressed the hope that they too might listen when they saw him whom they had known as a vehement persecutor preaching the faith which he had once destroyed.

Verse 19. - They themselves for they, A.V. In every synagogue. It appears from Matthew 10:18 that offenders were beaten in the synagogue, and doubtless by command of the synagogue authorities. A delation to any synagogue that any member of it was a blasphemer (i.e. a Christian) would lead to such a punishment. But probably the meaning here rather is that he went or sent to every synagogue to find out who there was among them that believed in Jesus, and then had them punished at Jerusalem (Acts 9:2).

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.And I said, Lord, they know, that I imprisoned,.... Men and women, that made a profession of the Christian religion, Acts 8:3

and beat in every synagogue them that believed on thee; in Jerusalem there were many synagogues, and in these scourging and beating of offenders were used; See Gill on Matthew 10:17.