4 That bade him come in haste. He by and by
by and by > straight away
5 His feeble feet directed to the cry, 6 Which to that shady delve him brought at last,
delve > pit, depression
7 Where Mammon erst did sun his treasury:
erst > recently (see 207.3 ff.) treasury > treasure
8 There the good Guyon he found slumbering fast
fast > firmly, deeply
9 In senseless dream; which sight at first him sore agast.
agast > terrified