Acts 4:27-31 describes the powerful response to the believers' prayer. After reciting Psalm 2 and acknowledging God's sovereignty, something extraordinary occurs: the place where they are meeting is shaken. This shaking resembles Old Testament theophanies (physical encounters with God), particularly Isaiah 6, where the temple trembles at God's presence. This event signifies God's response to their prayer and His endorsement of their appeal to His authority. It’s not merely a coincidence; it’s a divine affirmation. The shaking, along with other Lukan imagery like the cloud in Acts 1:9 and the wind and sound in Acts 2:2-3, depicts a powerful divine presence answering the believers' pleas. 

Acts 4:23-26 describes the early church's response to the Sanhedrin's threats. Upon their release, Peter and John return to their companions and report what transpired. “Their own" likely refers to the entire community of believers, 8,000 strong at this point, which would align with the general pattern in Acts. The subsequent outpouring of the Holy Spirit in verse 31 seems to affect the entire multitude, further suggesting a larger gathering.