So those who received his word were baptized, and there were added that day about three thousand souls.
41. They, therefore, which willingly. Luke showeth more plainly how fruitful this one sermon which Peter made was: to wit, that it gained unto Christ about three thousand men. And therewithal he declareth the nature and force of faith when he saith, that with a prompt and ready “Ililari,” cheerful. mind they embraced his word. Therefore, faith must begin with this readiness and willing desire to obey.
We have seen the wonderful effect of the pouring out of the Spirit, in its influence upon the preachers of the gospel. Peter, in all his life, never spoke at the rate that he had done now, with such fulness, perspicuity, and power. We are now to see another blessed fruit of the pouring out of the Spirit in its influence upon the hearers of the gospel.
Commenting on Acts 2:37-41
And they continued steadfastly in the apostles' doctrine,.... And which is the same with the doctrine of Christ, of which he is the author, preacher, and subject; the substance of which is peace, pardon, righteousness, and salvation by him: this the apostles received from Christ, and constantly taught in their ministry; for which reason, it is called theirs; and this these young converts had embraced...