Exodus 20:24

An altar thou shalt make for thy present use, or whilst thou art in the wilderness: this he commanded, partly, that they might easily and readily erect an altar upon all occasions, which it might be hard for them to do there of better materials; partly, to mind them how much more God regarded the inward holiness than the outward pomp of their devotions; partly, because God would make a conspicuous difference between them and idolaters, who used much cost and curiosity about their altars; partly, that the altars might, after they left them, fall down and moulder away, and not remain as lasting monuments, which might be afterward abused to idolatry by any persons that came thither; partly, because they were uncertain of their stay any where, except at Sinai, and therefore must raise such altars as they could suddenly do. But this command only concerned their wilderness state; for there were better and more durable altars in the tabernacle and temple. In all places, therefore there is no need of building any stately altar in a certain place, as if my presence were fixed there, and not to be enjoyed elsewhere. Where I record my name, or, cause my name to be remembered by you; i.e. not in every place which you shall invent, but in all such places as I shall appoint for the remembrance or celebration of my name, or for the service of my majesty, whether it be in the wilderness, and in divers parts thereof, or in the tabernacle and temple.