8623. 'And Moses built an altar' means for the holiness of worship and of remembrance. This is clear from the meaning of 'an altar' as the chief representative of the Lord, dealt with in 2777, 2811, 4489, and consequently the holiness of worship, 4541. The reason why it is also for remembrance is that in ancient times heaps were erected to serve as a witness and memorial that something was to stand firm and be remembered; and later on altars were erected too, 4192. Moses' altar was built for the remembrance of something, which was that because Amalek's hand was against the throne of Jah the war of Jehovah would be against him from generation to generation. The fact that altars too were erected to serve as a witness and memorial is clear from the altar which the Reubenites, Gadites, and half tribe of Manasseh built by the Jordan. They told the children of Israel who wished to go to war against them that they had built it to be a witness to the fact that they were to worship Jehovah, not with burnt offerings and sacrifices on that altar but on the altar before the tabernacle.^a Therefore they called the former,