For it has been said: "If today you hear his voice, harden not your hearts, in the same manner as in the former provocation.
Other versions
King James Version
While it is said, To day if ye will hear his voice, harden not your hearts, as in the provocation.English Standard Version
As it is said, "Today, if you hear his voice, do not harden your hearts as in the rebellion."New International Version
As has just been said: "Today, if you hear his voice, do not harden your hearts as you did in the rebellion."