Matthew 7:7

Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you:

Matthew 7:11

If ye then, who are evil, know how to give good gifts to your children, how much more will your heavenly Father give good things to them that ask Him?

Luke 11:8

I tell you, tho' he will not rise and give him, because he is his friend: yet because of his importunity he will rise and give him as many as he wants.

Luke 18:1

And He spake also a parable to them, to shew that men ought always to pray, and not to faint:

Ephesians 6:18

praying at all seasons with all prayer and supplication in the Spirit, and watching thereunto with all perseverance, and intercession for all the saints;

Hebrews 4:16

Let us therefore come with freedom to the throne of grace, that we may obtain mercy and find grace for our seasonable help.

Hebrews 10:20-22

the new and living way which He hath consecrated for us, through the veil, that is to say,

Treasury of Scripture Knowledge

Summary

And he said, Behold now, I have taken upon me to speak unto the Lord: Peradventure there shall be twenty found there. And he said, I will not destroy it for twenty's sake.

Bible References

General references

Matthew 7:7
Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you:
Luke 11:8
I tell you, tho' he will not rise and give him, because he is his friend: yet because of his importunity he will rise and give him as many as he wants.
Luke 18:1
And He spake also a parable to them, to shew that men ought always to pray, and not to faint:
Ephesians 6:18
praying at all seasons with all prayer and supplication in the Spirit, and watching thereunto with all perseverance, and intercession for all the saints;
Hebrews 4:16
Let us therefore come with freedom to the throne of grace, that we may obtain mercy and find grace for our seasonable help.
Hebrews 10:20
the new and living way which He hath consecrated for us, through the veil, that is to say,