'Voice' in the Bible

Therefore, just as the Holy Spirit says,“Today if you hear His voice,

while it is said,“Today [while there is still opportunity] if you hear His voice,Do not harden your heart, as when they provoked Me [in the rebellion in the desert at Meribah].”

He again sets a definite day, [a new] “Today,” [providing another opportunity to enter that rest by] saying through David after so long a time, just as has been said before [in the words already quoted],“Today if you hear His voice,Do not harden your hearts.”

and to the blast of a trumpet and a sound of words [such that] those who heard it begged that nothing more be said to them.

His voice shook the earth [at Mount Sinai] then, but now He has given a promise, saying, “Yet once more I will shake not only the earth, but also the [starry] heaven.”