1 John 5:15

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

Proverbs 15:29

Yahweh is far from the wicked, but the prayers of the righteous he will hear.

Jeremiah 15:12-13

Can anyone break iron, iron from the north, or bronze?

Mark 11:24

For this [reason] I say to you, whatever you pray and ask for, believe that you have received [it], and it will be [done] for you.

Luke 11:9-10

And I tell you, ask and it will be given to you; seek and you will find; knock and it will be opened for you.

1 John 5:18-20

We know that everyone who is fathered by God does not sin, but the one fathered by God, he protects him, and the evil 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
Yahweh is far from the wicked, but the prayers of the righteous he will hear.
Jeremiah 15:12
Can anyone break iron, iron from the north, or bronze?

We know

Mark 11:24
For this [reason] I say to you, whatever you pray and ask for, believe that you have received [it], and it will be [done] for you.
Luke 11:9
And I tell you, ask and it will be given to you; seek and you will find; knock and it will be opened for you.

General references

Psalm 20:4
May he give to you {your heart's desire}, and your every plan may he fulfill. Selah
Isaiah 65:24
And this will happen: before they call, I myself will answer; [while] still they [are] speaking, I myself will hear.
Matthew 21:22
And whatever you ask in prayer, [if you] believe, you will receive."