New Living Translation
Remember what it says: “Today when you hear his voice, don’t harden your hearts as Israel did when they rebelled.”

American Standard Version
while it is said, To-day if ye shall hear his voice, Harden not your hearts, as in the provocation.

Berean Study Bible
As it has been said: “Today, if you hear His voice, do not harden your hearts, as you did in the rebellion.”

Douay-Rheims Bible
While it is said, To day if you shall hear his voice, harden not your hearts, as in that provocation.

English Revised Version
while it is said, Today if ye shall hear his voice, Harden not your hearts, as in the provocation.

King James Bible
While it is said, To day if ye will hear his voice, harden not your hearts, as in the provocation.

World English Bible
while it is said, "Today if you will hear his voice, don't harden your hearts, as in the rebellion."

Young's Literal Translation
in its being said, 'To-day, if His voice ye may hear, ye may not harden your hearts, as in the provocation,'

Hebrews 3:15 Additional Translations ...