might > force
3 Than it had lighted on an aged oak;
it had > [had it] lighted on > alighted on, struck
4 Or on the marble pillar that is pight
pight > placed
5 Upon the top of Mount Olympus' height,
height > summit ("The assumption that Mount Olympus was the site of the Olympic Games appears also in Sidney's Apology for Poetry; but Spenser may have been misled by the obscure language of the Mythologiae of Natales Comes (5.1)": Maclean (1982) 286)
6 For the brave youthly champions to essay,
essay > attempt
7 With burning charet wheels, it nigh to smite: