Again, he defines a certain day, after so much time, saying in David, "Today," just as it was stated above, "If today you hear his voice, harden not your hearts.
Other versions
King James Version
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.English Standard Version
again he appoints a certain day, "Today," saying through David so long afterward, in the words already quoted, "Today, if you hear his voice, do not harden your hearts."New International Version
Therefore God again set a certain day, calling it Today, when a long time later he spoke through David, as was said before: "Today, if you hear his voice, do not harden your hearts."