1 John 5:15

And if we know that he hears us, whatever we may ask, we know that we have the requests that we have asked from him.

Proverbs 15:29

LORD is far from the wicked, but he hears the prayer of the righteous.

Jeremiah 15:12-13

Can a man break iron, even iron from the north, and brass?

Mark 11:24

Because of this I say to you, all things, as many as ye may ask, praying, believe that ye receive, and it will be for you.

Luke 11:9-10

And I say to you, ask, and it will be given you. Seek, and ye will find. Knock, and it will be opened.

1 John 5:18-20

We know that every man who has been begotten from God does not sin, but he who was begotten from God keeps himself, and the evil does not touch him.

Treasury of Scripture Knowledge

Summary

And if we know that he hear us, whatsoever we ask, we know that we have the petitions that we desired of him.

Bible References

If

Proverbs 15:29
LORD is far from the wicked, but he hears the prayer of the righteous.
Jeremiah 15:12
Can a man break iron, even iron from the north, and brass?

We know

Mark 11:24
Because of this I say to you, all things, as many as ye may ask, praying, believe that ye receive, and it will be for you.
Luke 11:9
And I say to you, ask, and it will be given you. Seek, and ye will find. Knock, and it will be opened.

General references

Psalm 20:4
grant thee thy heart's desire, and fulfill all thy counsel.
Isaiah 65:24
And it shall come to pass that, before they call, I will answer, and while they are yet speaking, I will hear.
Matthew 21:22
And all things, as many as ye may ask in prayer, believing, ye will receive.