
Five times that God reveals his name in the Old Testament:
God said to Moses, "I AM WHO I AM.
Ex 3:14
The Lord came down in a cloud, stood with him there, and proclaimed [His] name Yahweh (THE LORD)
Then God spoke to Moses, telling him, “I am Yahweh. I appeared to Abraham, Isaac, and Jacob as God Almighty (El Shaddai) but I did not make My name Yahweh known to them.
The Lord is a warrior; Yahweh is His name.
Ex 15:3
Then they'll learn your name: "God," the one and only High God on earth.
Psalms 83:18