1 John 5:15

and if we know that He heareth us in whatsoever we ask; we know that we shall have the petitions, which we have requested of Him.

Mark 11:24

Therefore I say unto you, What things soever ye ask in prayer, believe that ye receive them, and ye shall have them.

Luke 11:9-10

And so I tell you, Ask and it shall be given you, seek and ye shall find, knock and it shall be opened unto you.

1 John 5:18-20

We know that whosoever is born of God, doth not practise sin: but keepeth himself from it, 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.

General references

Bible References

We know

Mark 11:24
Therefore I say unto you, What things soever ye ask in prayer, believe that ye receive them, and ye shall have them.
Luke 11:9
And so I tell you, Ask and it shall be given you, seek and ye shall find, knock and it shall be opened unto you.

General references

Matthew 21:22
And all things whatsoever ye ask in prayer, believing, ye shall receive.