Once have I spoken; but I will not answer
Some think this refers to what he had just now said of his vileness, he had owned that, and that was all he had to say, or would say, he would give no other answer; Jarchi says, some suppose he has respect to his words in ( Job 9:22 ) ;
yea, twice; but I will proceed no further;
the meaning seems to be, that he who had once and again, or very often, at least in some instances, spoken very imprudently and indecently, for the future would take care not to speak in such a manner: for this confession was not quite free and full; and therefore the Lord takes him in hand again, to bring him to make a more full and ingenuous one, as he does in ( Job 42:1-6 ) .