By what means were the apostles delivered from prison?

Answer

"The angel of the Lord by night opened the prison doors, and brought them forth." Acts 5: 19.

After the Flood, what came in consequence of further apostasy from God?
With whom was Christ crucified?
Concerning what subject ought we to be informed?
Could such a help be found among the creatures which God had already made?
Why was double manna given on the sixth day?
How is this great and dreadful day described in this same prophecy?
What shows that the actions of men are recorded?

Questions & Answers are from the book Bible Readings for the Home Circle