Acts 12:5

So Peter was kept in prison: but the church made strong prayer to God for him.

2 Corinthians 1:11

You at the same time helping together by your prayer for us; so that for what has been given to us through a number of persons, praise may go up to God for us from all of them.

Isaiah 62:6-7

I have put watchmen on your walls, O Jerusalem; they will not keep quiet day or night: you who are the Lord's recorders, take no rest,

Matthew 18:19

Again, I say to you, that if two of you are in agreement on earth about anything for which they will make a request, it will be done for them by my Father in heaven.

Luke 18:1

And he made a story for them, the point of which was that men were to go on making prayer and not get tired;

Acts 12:12

And when he became clear about this, he went to the house of Mary, the mother of John named Mark, where a number of them had come together for prayer.

1 Corinthians 12:26

And if there is pain in one part of the body, all the parts will be feeling it; or if one part is honoured, all the parts will be glad.

Ephesians 6:18-20

With prayers and deep desires, making requests at all times in the Spirit, and keeping watch, with strong purpose, in prayer for all the saints,

1 Thessalonians 5:17

Keep on with your prayers.

Hebrews 13:3

Keep in mind those who are in chains, as if you were chained with them, and those who are in trouble, as being yourselves in the body.

James 5:16

So then, make a statement of your sins to one another, and say prayers for one another so that you may be made well. The prayer of a good man is full of power in its working.

Treasury of Scripture Knowledge

Summary

Peter therefore was kept in prison: but prayer was made without ceasing of the church unto God for him.

General references

Bible References

Prayer was made without ceasing, or, instant and earnest prayer was made

Acts 12:12
And when he became clear about this, he went to the house of Mary, the mother of John named Mark, where a number of them had come together for prayer.
Isaiah 62:6
I have put watchmen on your walls, O Jerusalem; they will not keep quiet day or night: you who are the Lord's recorders, take no rest,
Matthew 18:19
Again, I say to you, that if two of you are in agreement on earth about anything for which they will make a request, it will be done for them by my Father in heaven.
Luke 18:1
And he made a story for them, the point of which was that men were to go on making prayer and not get tired;
1 Corinthians 12:26
And if there is pain in one part of the body, all the parts will be feeling it; or if one part is honoured, all the parts will be glad.
2 Corinthians 1:11
You at the same time helping together by your prayer for us; so that for what has been given to us through a number of persons, praise may go up to God for us from all of them.
Ephesians 6:18
With prayers and deep desires, making requests at all times in the Spirit, and keeping watch, with strong purpose, in prayer for all the saints,
1 Thessalonians 5:17
Keep on with your prayers.
Hebrews 13:3
Keep in mind those who are in chains, as if you were chained with them, and those who are in trouble, as being yourselves in the body.
James 5:16
So then, make a statement of your sins to one another, and say prayers for one another so that you may be made well. The prayer of a good man is full of power in its working.

General references

Acts 5:18
And they took the Apostles and put them in the common prison.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain