To be necessary; needful.
Then opened he their understanding, that they might understand the scriptures, And said unto them, Thus it is written, and thus it BEHOVED Christ to suffer, and to rise from the dead the third day: and that repentance and remission of sins should be preached in his name among all nations, beginning at Jerusalem. ( Luke 24:45-47 )
Bibliography Information"Entry for 'Behove'". A King James Dictionary.