In the first round leg [of their first European competition], Spurs were due to play Gornik Zabrze in Katowice [Poland].....
And on the night of the match, Gornik played the best football in Katowice. Spurs were 4-0 down within an hour, though Jones and Dyson scored near the end to make it 4-2. Smith and Mackay threw themselves in the fray so robustly that afterwards the Polish coach observed that Spurs were "no angels." In consequence, three Spurs fans dressed as angels (creative use of bedsheets was involved) for the return leg, when they paraded around the touchline with placards saying, "Rejoice This Is The Night of Vengeance", "Glory Be To Shining White Hart Lane", "Who heard of Dirty Spurs?", and "And It Came To Pass: Jones to White to Smudger: Goal."
...Gornik scored first... but then a Blanchflower penalty, a Jones hat-trick, two goals from Dyson and White made it 8-1 on the night, 10-5 on aggregate. That night in September was the first of the glory nights of European football at White Hart Lane, the birth of "Glory Glory Hallelujah" as the fans, inspired by the angelic demonstration, burst spontaneously into song. The fans made the biggest noise in the south. It became the Tottenham hymn.