The seventeenth reading from the Torah is named Yitro (יתרו), which is the literal Hebrew behind the name Jethro. The title comes from the first words of the first verse of the reading, which says, “Now Jethro, the priest of Midian, Moses’ father-in-law, heard of all that God had done for Moses and for Israel His people” (Exodus 18:1). The portion tells the story of Jethro’s visit to the camp of Israel, then relates the great theophany at Mount Sinai, where God gives Israel the Ten Commandments and invites the people to enter a special covenant relationship with Him. Here is an interesting discussion on the portion: