15 While it is said, To-day if ye will hear his voice, harden not your hearts, as in the provocation.
Hebrews 3:15 Cross References - Webster
Psalms 95:7
7 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 3:7-8
Hebrews 10:29
29 Of how much more severe 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, by which he was sanctified, an unholy thing, and hath done despite to the Spirit of grace?
Hebrews 10:38
38 Now the just shall live by faith: but if any man shall draw back, my soul shall have no pleasure in him.