## So Peter was kept in the prison  ##

Implying that the soldiers were continually guarding Peter in prison

## earnestly  ##

"continuously with dedication" or "with commitment without stopping"

## by the assembly ##

The Jerusalem believers were praying or the church in Jerusalem was praying.

## for him ##

"for Peter"

## Herod was going to bring him out ##

"Herod was going to bring Peter out from prison to execute him"

## bound with two chains ##

"tied with two chains" or "fastened with two chains"

## watching over ##

"guarding"