It's not about where you are in the middle of life, its about where you are at the end of life. Will you be found in a state of belief or unbelief? We are talking about the kind of belief mentioned in Hebrews 3:12; the kind of belief that keeps us from departing from the living God.
3:12 Take heed, brethren, lest there be in any of you an evil heart of unbelief, in departing from the living God.
Hebrews is one of my favorites!
Take heed, brethren, lest there be in any of you an evil heart of unbelief, in departing from the living God. But exhort one another daily, while it is called To day;
lest any of you be hardened through the deceitfulness of sin. For we are made partakers of Christ, if we hold the beginning of our confidence stedfast unto the end; While it is said, To day if ye will hear his voice, harden not your hearts, as in the provocation. For some, when they had heard, did provoke: howbeit not all that came out of Egypt by Moses. But with whom was he grieved forty years? was it not with
them that had sinned, whose carcases fell in the wilderness? And to whom sware he that they should not enter into his rest, but to them that
believed not? So we see that they could not enter in because of
unbelief.
(Heb 3:12-19 KJV)
Take heed, brethren, lest there be in any of you an evil heart of unbelief, in departing from the living God
being hardened through the deceitfulness of sin.
With whom was he grieved forty years? Was it not with them that had sinned, whose carcases fell in the wilderness? As God have sworn in HIS wrath they shall not enter into my Rest! So we see that they could not enter therein because of unbeleif! Those that sinned! Hardened through the deceitfulness of sin; UNBELIEF!
Hence the use of the word disobedience being used by Mickelson enhanced Strong's in their defining the Greek word translated UNBELIEF....
G570 ἀπιστία apistia (ap-is-tee'-ah) n.
1. faithlessness
2. (negatively) disbelief (lack of Christian faith)
3. (positively) unfaithfulness (
disobedience)
I like what Wuest states in his work, Word Studies Volume 1 and 2. He says...
(3:19) The word "unbelief" is the translation of apistia, a compound of the usual word for "faith" in the New Testament with Alpha privative prefixed to negate the word.
Their disobedience led to their lack of faith. At the root of all unbelief is sin. Lack of faith in God's Word is never purely an intellectual thing. At its basis is the love of sin.
Translation: So we see that they could not enter in because of unbelief.