when they had. while they.
prayed. App-134.
shaken. Greek. saleuo. Compare Acts 16:26.
where. in which.
the Holy Ghost. App-101.
Related Commentaries of Acts 4:31
Acts 4:31
31 And when they had prayed, the place was shaken where they were assembled together; and they were all filled with the Holy Ghost, and they spake the word of God with boldness.