>>697931
Couple things here. First off, notice a few of the following exclusionary statements made specifically about scripture:
<Being born again, not of corruptible seed, but of incorruptible, by the word of God, which liveth and abideth for ever.
<For all flesh is as grass, and all the glory of man as the flower of grass. The grass withereth, and the flower thereof falleth away:
<But the word of the Lord endureth for ever. And this is the word which by the gospel is preached unto you. - 1 Peter 1:23-25
<But they have not all obeyed the gospel. For Esaias saith, Lord, who hath believed our report?
<So then faith cometh by hearing, and hearing by the word of God. - Romans 10:16-17
From this we see that we are saved by the word of God– that is their report– and that this is what is the gospel. That is what saves you, it is what is required for faith, and it is the word of God, that endures forever, never withering away. Can't say that about anything else.
—
<We have also a more sure word of prophecy; whereunto ye do well that ye take heed, as unto a light that shineth in a dark place, until the day dawn, and the day star arise in your hearts:
<Knowing this first, that no prophecy of the scripture is of any private interpretation.
<For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost. - 2 Peter 1:19-21
<Wherein God, willing more abundantly to shew unto the heirs of promise the immutability of his counsel, confirmed it by an oath:
<18That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation, who have fled for refuge to lay hold upon the hope set before us:
<Which hope we have as an anchor of the soul, both sure and stedfast, and which entereth into that within the veil; - Hebrews 6:17-19
From here we see how the fact God's word never goes wrong, and being sure in the scripture and the fact of its inspiration from God being the final assurance in it is the basis on which they were able to believe it. Being from God, the scripture is of no possible private interpretation, there exists exactly one objective interpretation (given by God, Lk. 24:45) to get because God is behind it. Thinking about this verse in specific, we realize it can't be said of any man's word, only of the word of God which is scripture as 2 Peter 1:20 applies it to. And that's the sure word. You can't say that about anything except God's word.
—
<If we receive the witness of men, the witness of God is greater: for this is the witness of God which he hath testified of his Son.
<He that believeth on the Son of God hath the witness in himself: he that believeth not God hath made him a liar; because he believeth not the record that God gave of his Son.
<And this is the record, that God hath given to us eternal life, and this life is in his Son. - 1 John 5:9-11
<It is the spirit that quickeneth; the flesh profiteth nothing: the words that I speak unto you, they are spirit, and they are life. - John 6:63
So here we see that in order to have life in you (see John 6:53) you must have the word of God. And again that the witness of God is greater than the witness of man. Which as 2 Peter 1:21 explained, God inspired the scriptures, making them the word of God. These are forever greater than the witness of any man.