Hebrews 3:15
and yet the warning continues to be spoken: "If you but hear His voice, you must not harden your hearts as they did in provoking me."
Hebrews 3:7-8
Therefore, as the Holy Spirit says: "If you but hear His voice today,
Hebrews 10:29
How much severer punishment do you suppose that one deserves who tramples the Son of God underfoot, and counts as a common thing the blood of the covenant by which he was consecrated, and has insulted the Spirit that grants God's unmerited favor?
Hebrews 10:38
Meantime, my righteous servant will live by faith. But if a man draws back, my soul has no delight in him."
Treasury of Scripture Knowledge
Summary
While it is said, To day if ye will hear his voice, harden not your hearts, as in the provocation.
Bible References
General references
Luke 8:6
Another portion of them fell upon the rock, and as soon as they sprang up, they withered, because they had no moisture.
John 9:18
But the Jews did not believe that he had really been blind and that he had come to see again, until they called the parents of the man who saw again,