Hebrews 3:7-19 - A Serious Warning Against Unbelief

⁷ Therefore, as the Holy Spirit says, "Today, if you hear his voice, ⁸ do not harden your hearts as they did when they provoked me during the time of testing in the wilderness. ⁹ There your ancestors tested me, ¹⁰ even though they had seen my actions for 40 years. That is why I was indignant with that generation and said, "They are always going astray in their hearts, and they have not known my ways.' ¹¹ So in my anger I swore a solemn oath that they would never enter my rest."

¹² See to it, my brothers, that no evil, unbelieving heart is found in any of you, as shown by your turning away from the living God. ¹³ Instead, continue to encourage one another every day, as long as it is called "Today," so that none of you may be hardened by the deceitfulness of sin, ¹⁴ because we are the Messiah's partners only if we hold on to our original confidence to the end. ¹⁵ As it is said, "Today, if you hear his voice, do not harden your hearts as they did when they provoked me."

¹⁶ Now who heard him and provoked him? Was it not all those who came out of Egypt led by Moses? ¹⁷ And with whom was he angry for 40 years? Was it not with those who sinned and whose bodies fell dead in the wilderness? ¹⁸ And to whom did he swear that they would never enter his rest? It was to those who disobeyed him, was it not? ¹⁹ So we see that they were unable to enter because of their unbelief.