Luke 18:1

THEN he spake also to them a parable, to shew that we ought to pray always, and not faint;

Colossians 4:2

Persevere in prayer, watching therein with thanksgiving;

Romans 12:12

rejoicing in hope; patient in affliction; persevering in prayer:

Ephesians 6:18

praying at every opportunity with all prayer and supplication in Spirit, and watching for this very purpose with perseverance and intercession for all the saints;

1 Thessalonians 5:17

Pray without ceasing.

Philippians 4:6

Be not anxious about any thing, but in every case by prayer and supplication, with thanksgiving, let your petitions be made known unto God.

Luke 21:36

Watch therefore, praying at every proper opportunity, that ye may be accounted worthy to escape all these things which are ready to come to pass, and to stand before the Son of man.

Luke 11:5-9

And he said unto them, Which of you shall have a friend, and he shall 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

Let us not then be weary of well-doing; for in due time we shall reap, if we faint not.

Colossians 4:12

Epaphras, one of you, saluteth you, a servant of Christ, always wrestling for you in prayers, that ye may stand perfect and complete in all the will of God.

Hebrews 12:3-5

Consider then attentively him that endured from sinners such opposition against himself, that ye be not wearied out, 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
Let us not then be weary of well-doing; for in due time we shall reap, if we faint not.
Hebrews 12:3
Consider then attentively him that endured from sinners such opposition against himself, that ye be not wearied out, fainting in your souls.

General references

Luke 11:10
For every one who asketh, receiveth; and he that seeketh, findeth; and to him that knocketh it shall be opened.