Luke 18:1

And He spoke a parable to them that it behooves them to pray always, and not to faint;

Colossians 4:2

Be constant in prayer, watching in the same with thanksgiving;

Romans 12:12

rejoicing in hope; patient in tribulation; continuing steadfastly in prayer;

Ephesians 6:18

praying with all prayer and supplication in the Spirit in every place, and watching unto this same thing in all perseverance and prayer for all the saints,

1 Thessalonians 5:17

pray without ceasing;

Philippians 4:6

Be solicitous about nothing; but in all prayer and supplication, let your request be made known to God.

Luke 21:36

Therefore watch, praying all the time, that you may be counted worthy to escape all these things which are about to come to pass, and to stand before the Son of man.

Luke 11:5-9

And He said to them, Which one of you shall have a friend, and go to him at midnight, and say to him, Friend, lend me three loaves;

2 Corinthians 4:1

Therefore having this ministry, as we have obtained mercy, we faint not;

Galatians 6:9

But let us not get weary doing that which is good: for in due time we will reap, fainting not.

Colossians 4:12

Epaphras, who is from you, the servant of Jesus Christ, always agonizing in your behalf in his prayers, in order that you may stand perfect even having been fully carried away in all the will of God, salutes you.

Hebrews 12:3-5

For consider him who has endured so great a contradiction of sinners against himself, in order that you may not become weary, fainting in your souls.

Treasury of Scripture Knowledge

Summary

And he spake a parable unto them to this end, that men ought always to pray, and not to faint;

General references

Bible References

And not

Galatians 6:9
But let us not get weary doing that which is good: for in due time we will reap, fainting not.
Hebrews 12:3
For consider him who has endured so great a contradiction of sinners against himself, in order that you may not become weary, fainting in your souls.

General references

Luke 11:10
For every one asking receives; and the one seeking finds; and to the one knocking it shall be opened.