Hebrews 3:15
"While it is said, To day if ye will hear his voice, harden not your hearts, as in the provocation."
Cross References (ranked by relevance)
Psalm 95:7
11
For he is our God; and we are the people of his pasture, and the sheep of his hand. To day if ye will hear his voice,
Hebrews 10:38
Now the just shall live by faith: but if any man draw back, my soul shall have no pleasure in him.
Hebrews 10:29
Of how much sorer punishment, suppose ye, shall he be thought worthy, who hath trodden under foot the Son of God, and hath counted the blood of the covenant, wherewith he was sanctified, an unholy thing, and hath done despite unto the Spirit of grace?