Acts 2:42

Upon every inhabitant of Jerusalem, at least upon a great many of them; and upon all, or the greater part of them that saw, and heard these things; that heard the apostles speak with divers tongues,…

And they continued stedfastly - They persevered in, or they adhered to. This is the inspired record of the result. That any of these apostatized is nowhere recorded, and is not to be presumed. Though…

They continued steadfastly in the apostles' doctrine - They received it, retained it, and acted on its principles.

And fellowship - Κοινωνιᾳ, community; meaning association for religious and…

We often speak of the primitive church, and appeal to it, and to the history of it; in these verses we have the history of the truly primitive church, of the first days of it, its state of infancy…

And they continued stedfastly in the apostles" doctrine i.e. They allowed nothing to interfere with the further teaching which the Apostles no doubt gave to the newly baptized. The converts would…