 But the Gemara taught after the Israelites complained about the manna in God burdened the Israelites with the walk of three parasangs to get outside their camp to answer the call of nature.And it was then that the command of "And you shall have a paddle among your weapons," began to apply to the Israelites.The Mishnah taught that a red cow born by a caesarean section, the hire of a harlot, or the price of a dog was invalid for the purposes of Rabbi Eliezer ruled it valid, as states, "You shall not bring the hire of a harlot or the price of a dog into the house of the Lord your God," and the red cow was not brought into the house.