1 John 5:15

And, if we know that he doth hearken unto us, whatsoever we ask, we know that we have the things asked, which we have asked of him,

Proverbs 15:29

Far off is Yahweh, from the lawless, but, the prayer of the righteous, will he hear.

Jeremiah 15:12-13

Shall iron crush the iron from the North and the bronze?

Mark 11:24

For this cause, I say unto you - All things, whatsoever ye are praying for and asking, believe that ye have received, and they shall be yours.

Luke 11:9-10

I, therefore, unto you, say - Be asking, and it shall be given to you, Be seeking, and ye shall find, - Be knocking, and it shall be opened unto you.

1 John 5:18-20

We know that, whosoever hath been born of God, is not committing sin, - Nay, he that hath been born of God, He keepeth him, and, the wicked one, doth 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
Far off is Yahweh, from the lawless, but, the prayer of the righteous, will he hear.
Jeremiah 15:12
Shall iron crush the iron from the North and the bronze?

We know

Mark 11:24
For this cause, I say unto you - All things, whatsoever ye are praying for and asking, believe that ye have received, and they shall be yours.
Luke 11:9
I, therefore, unto you, say - Be asking, and it shall be given to you, Be seeking, and ye shall find, - Be knocking, and it shall be opened unto you.

General references

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