1Jn 5:13-15 KJV
(13) 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.
(14) And this is the confidence that we have in him, that, if we ask any thing according to his will, he heareth us:
(15) And if we know that he hear us, whatsoever we ask, we know that we have the petitions that we desired of him.
God has clearly stated His will in His word:
2Pe 1:1-4 KJV
(1) Simon Peter, a servant and an apostle of Jesus Christ, to them that have obtained like precious faith with us through the righteousness of God and our Saviour Jesus Christ:
(2) Grace and peace be multiplied unto you through the knowledge of God, and of Jesus our Lord,
(3) According as his divine power hath given unto us all things that pertain unto life and godliness, through the knowledge of him that hath called us to glory and virtue:
(4) Whereby are given unto us exceeding great and precious promises: that by these ye might be partakers of the divine nature, having escaped the corruption that is in the world through lust.
if i tell you that i've sent you some money, and you tell me i didn't because you don't have it yet, what more can i say? wouldn't i just be silent? if you didn't believe me when i said i sent it, why would you believe anything else i might say? but if you ask me why you haven't yet received the money that you believe i sent you based on my word, then i can tell you how to receive it, because you are now listening to me...