1 John 5:15

And if we know that he hears us, whatsoever we ask, we know that we have the petitions which we have asked of him.

Proverbs 15:29

Jehovah is far from the wicked; but he heareth the prayer of the righteous.

Jeremiah 15:12-13

Will iron break? iron from the north? and bronze?

Mark 11:24

For this reason I say to you, All things whatsoever ye pray for and ask, believe that ye receive it, and it shall come to pass for you.

Luke 11:9-10

And I say to you, Ask, and it shall be given to you; seek, and ye shall find; knock, and it shall be opened to you.

1 John 5:18-20

We know that every one begotten of God does not sin, but he that has been begotten of God keeps himself, and the wicked one 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
Jehovah is far from the wicked; but he heareth the prayer of the righteous.
Jeremiah 15:12
Will iron break? iron from the north? and bronze?

We know

Mark 11:24
For this reason I say to you, All things whatsoever ye pray for and ask, believe that ye receive it, and it shall come to pass for you.
Luke 11:9
And I say to you, Ask, and it shall be given to you; seek, and ye shall find; knock, and it shall be opened to you.

General references

Psalm 20:4
Grant thee according to thy heart, and fulfil all thy counsels.
Isaiah 65:24
And it shall come to pass, that before they call, I will answer; while they are yet speaking, I will hear.
Matthew 21:22
And all things whatsoever ye shall ask in prayer, believing, ye shall receive.