Nelson could not see the signal for suspending battle because he placed the glass to his blind eye, and man cannot see the truth as it is in Jesus because he has no mind to do so. Ungodly men are, as the country people say, 'like the hogs in a harvest field,' who come not out for all your shouting; they cannot hear because they have no will to hear. Want of will causes paralysis of every faculty. In spiritual things man is utterly unable because resolvedly unwilling.