NET
7 So God again ordains a certain day, “Today,” speaking through David after so long a time, as in the words quoted before, “Oh, that today you would listen as he speaks! Do not harden your hearts.”
Darby
7 again he determines a certain day, saying, in David, 'To-day,' after so long a time; (according as it has been said before), To-day, if ye will hear his voice, harden not your hearts.
KJV
7 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.