Acts 12:5

thus Peter was kept in prison, but the Church prayed to God, without ceasing, for him,

2 Corinthians 1:11

being assisted by your prayers for me, so that thanks may be returned by many, for the gracious deliverance procur'd me by their prayers.

Matthew 18:19

I assure you, that if two of you shall live in agreement together, whatever they ask shall be granted to them by my heavenly father.

Luke 18:1

Jesus propos'd likewise this parable to them, to show that they should persevere in prayer, and not be discouraged.

Acts 12:12

then recollecting where he was, he went to the house of Mary the mother of John, surnam'd Mark, where many were assembled at prayers.

1 Corinthians 12:26

so that if one member suffer, they all suffer with it: or if one be honoured, they partake of it.

Ephesians 6:18-20

Pour out your souls unto God upon all occasions, watching in prayer with all perseverance and supplication for all christians:

1 Thessalonians 5:17

pray upon all occasions.

Hebrews 13:3

remember those that are in chains, as if you were confin'd with them; and those who suffer adversity, as being your selves of the same body.

James 5:16

confess then to one another the offences you have committed, and pray for one another, that you may be healed; the fervent prayer of a virtuous man has great influence.

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
then recollecting where he was, he went to the house of Mary the mother of John, surnam'd Mark, where many were assembled at prayers.
Matthew 18:19
I assure you, that if two of you shall live in agreement together, whatever they ask shall be granted to them by my heavenly father.
Luke 18:1
Jesus propos'd likewise this parable to them, to show that they should persevere in prayer, and not be discouraged.
1 Corinthians 12:26
so that if one member suffer, they all suffer with it: or if one be honoured, they partake of it.
2 Corinthians 1:11
being assisted by your prayers for me, so that thanks may be returned by many, for the gracious deliverance procur'd me by their prayers.
Ephesians 6:18
Pour out your souls unto God upon all occasions, watching in prayer with all perseverance and supplication for all christians:
1 Thessalonians 5:17
pray upon all occasions.
Hebrews 13:3
remember those that are in chains, as if you were confin'd with them; and those who suffer adversity, as being your selves of the same body.
James 5:16
confess then to one another the offences you have committed, and pray for one another, that you may be healed; the fervent prayer of a virtuous man has great influence.

General references

Acts 5:18
went and seized on the apostles, and put them in the common prison.