Luke
Acts 4:30ESV·traditional attribution

while you stretch out your hand to heal, and signs and wonders are performed through the name of your holy servant Jesus.”

John Calvin Reformed @genevareformer

30. Grant unto thy servants. Seeing that one miracle had stinged the enemy so sore how is it that these holy men do desire to have new miracles done daily? Therefore we gather that hence which I have already touched, that they make so great account of the glory of God, that in comparison of this, they set light by all other things.

Matthew Henry Presbyterian @wholebiblehenry

We hear no more at present of the chief priests, what they did when they had dismissed Peter and John, but are to attend those two witnesses. And here we have, I. Their return to their brethren, the apostles and ministers, and perhaps some private Christians (Act 4:23): Being let go, they went to their own company, who perhaps at this time were met together...

Commenting on Acts 4:23-31

John Gill Reformed Baptist @doctorgill

By stretching forth thine hand to heal,.... That is, by exerting his power in healing sicknesses, diseases, and lameness, as in the above instance, by the hands of the apostles; which, as it would be contrary to the schemes of the Jewish sanhedrim, and would confirm the doctrines of the Gospel; so it would animate the preachers of the word to preach it with more...