In Indiana Jones and the Last Crusade, what phrase identifies the Grail knight’s test for crossing the floor?

In Indiana Jones and the Last Crusade, the phrase identifying the Grail knight’s test is “Only the penitent man will pass.”

Indiana Jones reads the inscription while trying to cross a booby-trapped floor in the temple where the Holy Grail is hidden. He realizes that the word “penitent” describes a person who kneels or humbles himself, so he drops to his knees just before the blades strike. The gesture allows him to survive the first part of the test.

The scene is part of the film’s sequence of clues based on the Grail Diary, which Indiana’s father, Henry Jones Sr., has studied for years. The movie presents the trial as a literal interpretation of the inscription rather than as a purely spiritual lesson.

The phrase is sometimes shortened in quotations, but the film’s full line is “Only the penitent man will pass.”