It would be heavier, i.e. my grief or calamity, than the sand of the sea, which is heavier than dry sand. Swallowed up, as this verb is used, Proverbs 20:25 Obadiah 1:16. My voice and spirit faileth me. So far am I from speaking too liberally of it, for which I am now accused, that I cannot find nor utter words sufficient to express my sorrow or misery; but my groanings are such as cannot be uttered, as is said in another case, Romans 8:26. When I would express it, the words stick in my throat, and I am forced, as it were, to swallow them up.
Related Commentaries of Job 6:3
Job 6:3
3 For now it would be heavier than the sand of the sea: therefore my wordsb are swallowed up.