en_tn_lite_do_not_use/2ch/18/31.md

That is the king of Israel

Jehoshaphat was wrongly identified as the king of Israel because Ahab had insisted that he wear kingly robes.

God turned them away from him

"God caused them to stop pursuing him"

It came about that

This phrase is used here to mark an important event in the story. If your language has a way for doing this, you could consider using it here.