'Cannot' in the Bible

and turn ye not aside; for it would be after vain things which cannot profit nor deliver; for they are vain.

And David girded his sword upon his dress, and endeavoured to go; for he had not yet tried it. And David said to Saul, I cannot go in these; for I have never tried them. And David put them off him.

And when Saul saw David go forth against the Philistine, he said to Abner, the captain of the host, Abner, whose son is this young man? And Abner said, As thy soul liveth, O king, I cannot tell.

And now know and consider what thou wilt do, for evil is determined against our master, and against all his household; and he is such a son of Belial, that one cannot speak to him.