also did in like manner with their enchantments." When they beheld the signs and the wonders that Moses performed, they came to Moses to be converted. God advised Moses not to accept them, but Moses argued that now that they had seen God's power, they desired to accept the Israelites' Faith, and if they saw God's power every day, they would learn that there is no God like God. So Moses accepted them. called them a "mixed multitude" because they consisted of all the grades of Egyptian magicians, at their head being Jannes and Jambres. During the day, these wizards practiced their enchantments, and after sunset, they made observations of the heavens until the middle of the ninth hour, which was called the "great evening" (, erev rav, which means both "great multitude" and "great evening"). The lesser magicians then made observation after that until midnight. The Egyptians, who had great faith in the chief wizards, thus called them the "great evening" (, erev rav). Exodus chapter 13 Noting the universal application of the laws of tefillin in , 16, Maimonides taught that God designed the wearing of tefillin as a more enduring form of worship than the practice of sacrifices, which Maimonides taught were a transitional step to wean the Israelites off of the worship of the times and move them toward prayer as the primary means of worship. Maimonides noted that in nature, God created animals that develop gradually. For example, when a mammal is born, it is extremely tender, and cannot eat dry food, so God provided breasts that yield milk to feed the young animal, until it can eat dry food. Similarly, Maimonides taught, God instituted many laws as temporary measures, as it would have been impossible for the Israelites suddenly to discontinue everything to which they had become accustomed. So God sent Moses to make the Israelites (in the words of ) "a kingdom of priests and a holy nation." But the general custom of worship in those days was sacrificing animals in temples that contained idols. So God did not command the Israelites to give up those manners of service, but allowed them to continue. God changed the service of idol worship to the service of the Sanctuary (), to erect the altar to God's name (), to offer sacrifices to God (), to bow down to God, and to burn incense before God.