1 John 5:13-15

These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God.

¶ And this is the confidence that we have in him, that, if we ask any thing according to his will, he heareth us:

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