In the third reading (, "aliyah"), at the beginning of the second year following the Exodus from Egypt, God told Moses to have the Israelites celebrate Passover at its set time. But some men were unclean because they had had contact with a corpse and could not offer the Passover sacrifice on the set day. They asked Moses and Aaron how they could participate in Passover, and Moses told them to stand by while he listened for God's instructions. God told Moses that whenever Israelites were defiled by a corpse or on a long journey on Passover, they were to offer the Passover offering on the 14th day of the second month—a month after Passover—otherwise in strict accord with the law of the Passover sacrifice. But if a man who was clean and not on a journey refrained from offering the Passover sacrifice, he was to be cut off from his kin. In the fourth reading (, "aliyah"), starting the day that the Tabernacle was set up, a cloud covered the Tabernacle by day, and a fire rested on it by night. Whenever the cloud lifted from the Tent, the Israelites would follow it until the cloud settled, and there the Israelites would make camp and stay as long as the cloud lingered. God told Moses to have two silver trumpets made to summon the community and to set it in motion. Upon long blasts of the two horns, the whole community was to assemble before the entrance of the Tent of Meeting. Upon the blast of one, the chieftains were to assemble. Short blasts directed the divisions encamped on the east to move forward, and a second set of short blasts directed those on the south to move forward. As well, short blasts were to be sounded when the Israelites were at war against an aggressor who attacked them, and the trumpets were to be sounded on joyous occasions, Festivals, new moons, burnt offerings, and sacrifices of well-being. In the fifth reading (, "aliyah"), in the second month of the second year, the cloud lifted from the Tabernacle and the Israelites set out on their journeys from the wilderness of Sinai to the wilderness of Paran. Moses asked Hobab son of Reuel the Midianite to come with the Israelites, promising to be generous with him, but he replied that he would return to his native land. Moses pressed him again, noting that he could serve as the Israelites' guide. They marched three days distance from Mount Sinai, with the Ark of the Covenant in front of them, and God's cloud above them by day.