In the early church all those who were believers continued daily, and in some cases constantly in prayer, as well as in the apostle’s doctrine and fellowship and in communion. The leaders especially gave themselves to prayer and to the ministry of the Word. Thus they led the people to pray by example.
And they continued steadfastly in the apostles’ doctrine and fellowship, in the breaking of bread, and in prayers.
Now Peter and John went up together to the temple at the hour of prayer, the ninth hour.
“… but we will give ourselves continually to prayer and to the ministry of the word.”
Peter was therefore kept in prison, but constant prayer was offered to God for him by the church.
The result of this constant and dedicated prayer (along with the apostle’s doctrine, fellowship and communion) was this:
Signs and wonders were done through the apostles.
The fear of God was upon them all.
They shared their possessions with all who had needs.
The Lord added to the church daily those who were being saved (2:43-46).