15 while it is said: “Today, if you will hear His voice, Do not harden your hearts as in the rebellion.”
The quotation of this verse is repeated twice in this chapter for emphasis.
15 while it is said:
“Today, if you will hear His voice,
The issue in context is hearing God’s “voice,” or His revelation.
Do not harden your hearts as in the rebellion.”
The readers of Hebrews did not hold firmly to their original conviction. They were just like those in Psalm 95 who did not hold to their assurance. Those who came out of Egypt rebelled against Moses and God.
Unbelief is refusal to believe God.
Unbelief is not the lack of faith; it is refusal to believe God. It also involves stepping out of the will of God.
Unbelief is the cause of people turning back from following the Lord. The Israelites hardened their hearts toward God’s Word. In doing so they lost their confidence. Christians have the same danger facing them. It is possible to maintain a facade of belief with a recalcitrant heart.