'Voice' in the Bible

Wherefore, (as the Holy Spirit saith, 'To-day, if His voice ye may hear --

in its being said, 'To-day, if His voice ye may hear, ye may not harden your hearts, as in the provocation,'

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,'

and a sound of a trumpet, and a voice of sayings, which those having heard did entreat that a word might not be added to them,

whose voice the earth shook then, and now hath he promised, saying, 'Yet once -- I shake not only the earth, but also the heaven;'