Humbert of Romans rationalized Islam’s existence as serving three providential purposes for Christians

Evidence

Augustine had said that evil was permitted only that good might come of it. Humbert was able to identify the three goods which came of the Islamic evil; the manzifestatto fidelium Christi, a sort of public confession of loyalty; the ezercztio bonum, in execution of God’s wish that His people should not be unemployed; and salutis facilitas, in that many were willing to fight Saracens who would never consent to perform long or exacting penances. — Norman Daniel, Islam and the West, 729

Categorization

• QUESTION: Would be worth checking whether Humbert’s three-goods schema drew on any established school tradition, or was his own invention — the ‘unemployment of God’s people’ logic is oddly specific.
• XREF: connects to: Humbert rationalized Islam’s rise as God’s permitted evil producing three goods