“Moses went and returned to Yeter his father-in-law, and he said to him: Please, let me go and return to my brethren who are in Egypt and see if they are still alive. Yitro said to Moses: Go in peace [lekh leshalom]” (Exodus 4:18). “He said to him: Please, let me go and return.” You find that everyone in whose regard “go in peace [leshalom]” is stated, he went and returned, and everyone in whose regard beshalom3David said to Avshalom: “Go in peace [beshalom]” (II Samuel 15:9), and he did not return. is written, he went and did not return. Yitro said to Moses: “Go in peace [leshalom],” and he went and returned.