After the Amalek battle, Moses built an altar — but the Targum Pseudo-Jonathan preserves the name he carved into it with surprising precision: "The Word of the Lord is my banner; for the sign which He hath wrought (in this) place was on my behalf" (Exodus 17:15).
The Aramaic once again reaches for Memra, the divine Word. It is not simply the Lord who is Moses's banner, but the Lord's speaking presence, the active verb of heaven in the world. A banner is what soldiers rally to. It is what makes a scattered force into an army. Moses is declaring that the rallying point of Israel is not a flag, not a king, not even a staff — it is the divine Word that authored the victory.
The phrase "the sign which He hath wrought in this place was on my behalf" is also striking. Moses claims the miracle personally. Not on Israel's behalf alone, not on Joshua's — but mine. The Targum shows a leader so identified with the people that their rescue is his rescue.
Every altar in Torah has a name, because an altar without a name is just stacked stone. The takeaway: when God delivers you, name the deliverance. Mark the place. Build the altar so the memory has an address.