Who took care of Elijah in Zarephath?

Answer: A widow

A widow at Zarephath provided for Elijah.

“So Elijah got up and went to Zarephath. When he arrived at the city gate, there was a widow gathering sticks. Elijah called to her and said, “Please bring me a little water in a cup, so that I may drink.””— 1 Kings 17:10 (BSB)