Behold the sword of the Lord will descend suddenly and quickly upon the earth.
Ecce gladius Domini super terram, cito et velociter.
Original text (Italian)
Notes from Wikiquote
Motto he beheld in a vision (December 1492), as quoted in History of the Christian Church, Vol. V (1910) by Philip Schaff, and David Schley Schaff p. 688 | As quoted in Books: The Sword of God" in TIME (17 August 1959)