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.

Philippians 1:19

For I am conscious that this will be for my salvation, through your prayer and the giving out of the stored wealth of the Spirit of Jesus Christ,

2 Corinthians 4:15

For we go through all things on account of you, because the greater the number to whom the grace is given, the greater is the praise to the glory of God.

Acts 12:5

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

2 Corinthians 9:11-12

Your wealth being increased in everything, with a simple mind, causing praise to God through us.

Isaiah 37:4

It may be that the Lord your God will give ear to the words of the Rab-shakeh, whom the king of Assyria, his master, has sent to say evil things against the living God, and will make his words come to nothing: so make your prayer for the rest of the people.

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,

Romans 15:30-32

Now I make request to you, brothers, by our Lord Jesus Christ, and by the love of the Spirit, that you will be working together with me in your prayers to God for me;

2 Corinthians 9:14

While their hearts go out to you in love and in prayer for you, because of the great grace of God which is in you.

Ephesians 6:18-19

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,

Colossians 4:3

And making prayer for us, that God may give us an open door for the preaching of the word, the secret of Christ, for which I am now in chains;

1 Thessalonians 5:25

Brothers, keep us in mind in your prayers.

2 Thessalonians 3:1

For the rest, my brothers, let there be prayer for us that the word of the Lord may go forward with increasing glory, even as it does with you;

Hebrews 13:18

Make prayers for us, for we are certain that our hearts are free from the sense of sin, desiring the right way of life in all things.

James 5:16-18

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

Ye also helping together by prayer for us, that for the gift bestowed upon us by the means of many persons thanks may be given by many on our behalf.

Bible References

Helping

2 Corinthians 9:14
While their hearts go out to you in love and in prayer for you, because of the great grace of God which is in you.
Isaiah 37:4
It may be that the Lord your God will give ear to the words of the Rab-shakeh, whom the king of Assyria, his master, has sent to say evil things against the living God, and will make his words come to nothing: so make your prayer for the rest of the people.
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,
Acts 12:5
So Peter was kept in prison: but the church made strong prayer to God for him.
Romans 15:30
Now I make request to you, brothers, by our Lord Jesus Christ, and by the love of the Spirit, that you will be working together with me in your prayers to God for me;
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,
Philippians 1:19
For I am conscious that this will be for my salvation, through your prayer and the giving out of the stored wealth of the Spirit of Jesus Christ,
Colossians 4:3
And making prayer for us, that God may give us an open door for the preaching of the word, the secret of Christ, for which I am now in chains;
1 Thessalonians 5:25
Brothers, keep us in mind in your prayers.
2 Thessalonians 3:1
For the rest, my brothers, let there be prayer for us that the word of the Lord may go forward with increasing glory, even as it does with you;
Philemon 1:22
And make a room ready for me; for I am hoping that through your prayers I will be given to you.
Hebrews 13:18
Make prayers for us, for we are certain that our hearts are free from the sense of sin, desiring the right way of life in all things.
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

1 Corinthians 12:22
No, those parts which seem to be feeble are the more necessary;
1 Thessalonians 5:25
Brothers, keep us in mind in your prayers.

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