do not harden your hearts as in the rebellion, on the day of testing in the wilderness,
8. Then follows, Harden not your hearts By which words is intimated that our rebellion against God flows from no other fountain than willful wickedness, by which we obstruct the entrance of his grace, We have indeed by nature a heart of stone, and there is in all an innate hardness from the womb, which God alone can mollify and amend.
Here the apostle proceeds in pressing upon them serious counsels and cautions to the close of the chapter; and he recites a passage out of Psa 95:7, etc., where observe, I. What he counsels them to do - to give a speedy and present attention to the call of Christ.
Commenting on Hebrews 3:7-19
Harden not you hearts,.... There is a natural hardness of the heart; the heart of man is like a stone, destitute of spiritual life, motion, and activity; it is senseless, stupid, impenitent, stubborn, and inflexible, on which no impressions can be made, but by powerful grace: and there is an acquired, habitual, and voluntary hardness of heart, to which men arrive by various steps; as...