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Behoove
BEHOOVE [isbe]
BEHOOVE - be-hoov': Used in the New Testament for two Greek words dei (Lk 24:26; Acts 17:3) and opheilo (Heb 2:17); the former referring to a physical, and the latter to a moral, necessity (Bengelon, 1 Cor 11:10). The former means "must," that is, it is required by the order which God has ordained; the latter, "ought," that is, it is required as a debt.
Also see definition of "Behoove" in Word Study