Murray, maybe you're thinking of a different tune than I am?

Apparently, the proper name of the hymn is 'He Who Would Valiant Be". Here it is at this Cyberhymnal page, with embedded tune - 'St. Dunstan's' The tune I'm familiar with is the other one given on the page Monk's Gate (MIDI). This is definitely not 4/4. I don't know what the heck it's in though (brain's somewhere else) - maybe part 4/4 and part 5/4?