2 Corinthians 1:11

while all of you also are helping me by your prayers; so that from many lips thanksgiving may rise on my behalf for the blessings vouchsafed to me through the intercessions of many.

Philippians 1:19

For I know that these things will turn out to my salvation through your prayers and a rich supply of the Spirit of Jesus Christ.

2 Corinthians 4:15

For everything is for your sakes, so that more abundant grace, because of the thanksgiving of many voices, might overflow to the glory of God.

Acts 12:5

So Peter was kept in prison, but earnest prayer to God was made by the church for him.

2 Corinthians 9:11-12

You yourselves will be enriched with all good things, that you may give ungrudgingly; and your gifts, of which I am the agent, will make men give thanks to God.

Romans 15:30-32

Brothers, I beseech you, by Jesus Christ our Lord, and by the love which the Spirit gives, to help me in my struggle by your prayers to God on my behalf,

2 Corinthians 9:14

Moreover, in their prayers for you they will be longing after you, because of the exceeding grace of God that is resting upon you.

Ephesians 6:18-19

Continue to pray at all times, with all prayer and supplication in the Spirit, and watching for it with all perseverance and supplication for all saints;

Colossians 4:3

Keep on praying for me, too, that God may open for me a door of utterance to speak the secret truth of Christ, for which I am a prisoner.

1 Thessalonians 5:25

Brothers, pray for me.

2 Thessalonians 3:1

Finally, brothers, pray on for me, that God's word may run swiftly, and be glorified as in your own case,

Hebrews 13:18

Keep on praying for me. I am persuaded that I have a clear conscience, and I desire in every way to live nobly.

James 5:16-18

So confess your sins one to another, and pray for one another, that you may be healed. For the fervent prayer of a righteous man is mighty 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
Moreover, in their prayers for you they will be longing after you, because of the exceeding grace of God that is resting upon you.
Acts 12:5
So Peter was kept in prison, but earnest prayer to God was made by the church for him.
Romans 15:30
Brothers, I beseech you, by Jesus Christ our Lord, and by the love which the Spirit gives, to help me in my struggle by your prayers to God on my behalf,
Ephesians 6:18
Continue to pray at all times, with all prayer and supplication in the Spirit, and watching for it with all perseverance and supplication for all saints;
Philippians 1:19
For I know that these things will turn out to my salvation through your prayers and a rich supply of the Spirit of Jesus Christ.
Colossians 4:3
Keep on praying for me, too, that God may open for me a door of utterance to speak the secret truth of Christ, for which I am a prisoner.
1 Thessalonians 5:25
Brothers, pray for me.
2 Thessalonians 3:1
Finally, brothers, pray on for me, that God's word may run swiftly, and be glorified as in your own case,
Philemon 1:22
Please also prepare for me a lodging, for I am hoping by your prayers to be restored to you again.
Hebrews 13:18
Keep on praying for me. I am persuaded that I have a clear conscience, and I desire in every way to live nobly.
James 5:16
So confess your sins one to another, and pray for one another, that you may be healed. For the fervent prayer of a righteous man is mighty in its working.

General references

1 Corinthians 12:22
On the contrary, we need those members of the body which seem to be weaker;
1 Thessalonians 5:25
Brothers, pray for me.