GOD'S WORD® Translation
So God set another day. That day is today. Many years after [your ancestors failed to enter that place of rest] God spoke about it through David in the passage already quoted: "If you hear God speak today, don't be stubborn."

American Standard Version
he again defineth a certain day, To-day, saying in David so long a time afterward (even as hath been said before), To-day if ye shall hear his voice, Harden not your hearts.

Berean Study Bible
God again designated a certain day as “Today,” when a long time later He spoke through David as was just stated: “Today, if you hear His voice, do not harden your hearts.”

Douay-Rheims Bible
Again he limiteth a certain day, saying in David, To day, after so long a time, as it is above said: To day if you shall hear his voice, harden not your hearts.

English Revised Version
he again defineth a certain day, saying in David, after so long a time, Today, as it hath been before said, Today if ye shall hear his voice, Harden not your hearts.

King James Bible
Again, he limiteth a certain day, saying in David, To day, after so long a time; as it is said, To day if ye will hear his voice, harden not your hearts.

World English Bible
he again defines a certain day, today, saying through David so long a time afterward (just as has been said), "Today if you will hear his voice, don't harden your hearts."

Young's Literal Translation
again He doth limit a certain day, 'To-day,' (in David saying, after so long a time,) as it hath been said, 'To-day, if His voice ye may hear, ye may not harden your hearts,'

Hebrews 4:7 Additional Translations ...