then said they to him, Say now Shibboleth; and he said Sibboleth; for he couldn't manage to pronounce it right: then they laid hold on him, and killed him at the fords of the Jordan. There fell at that time of Ephraim forty-two thousand.
Now look, notice, Jephthah was a very egocentric person. Notice all the I's and the my's and so forth in these next few verses. It demonstrates the guy's egocentricities.