He putteth his mouth in the dust
Of self-abhorrence; sensible of his own vileness and nothingness, his unworthiness, and the unprofitableness of all his duties; ascribing the whole of his salvation to the free grace of God, ( Job 42:6 ) ; humbling himself under the mighty hand of God; not daring to open his mouth in a complaining way against him; but prostrating himself before him to the earth, as the manner of the eastern people in prayer was, to which the allusion is; licking as it were the dust of the earth, under a sense of the distance and disproportion between God and him, who is but dust and ashes; so the Targum adds,
``and is prostrate before the Lord:''if so be there may be hope;