Is just the proverb, and "As poor as Job."
One would have thought he could no longer jog;
But Arthur was a level, Job's a bog.
There though he crept, yet still he kept in sight;
But here he founders in, and sinks downright.
Had he prepared us, and been dull by rule,
Tobit had first been turned to ridicule;
But our bold Briton, without fear or awe,
O'erleaps at once the whole Apocrypha;
Invades the Psalms with rhymes, and leaves no room