'Unquestionably' in the Bible

Who [among the idols] has declared this from the beginning, so that we could know?Or from earlier times, so that we could say, “He is [unquestionably] right!”?In fact, there was no one who declared it,Indeed, there was no one who proclaimed it;There was no one at all who heard you speak [for you pagan gods are speechless].

So if the Son makes you free, then you are unquestionably free.