Simplify the following text for a Grade 5 native English-speaking person.
Original: Moses fled to Midian , where he married Jethro 's daughter , Zipora . One day Moses was tending his father-in-law , Jethro 's , sheep and came to Mount Horeb .
Simplified: Jethro , Moses ' father-in-law , came to see Moses and brought Moses ' wife and two sons with him .