Jehovah Nissi (the Lord is My Banner) appeared in Exodus 17:8-16, when Moses built an altar to the Lord after the Israelites had defeated the Amalekites in battle. The Amalekites were very evil people and they represent the spiritual forces arrayed against us. The Banner was the rod of Moses which brought about the defeat of Amalekites, brought the ten plagues on Egypt, parted and closed the Red Sea and smote the Rock and brought forth water.
In our lives, there will be battles which require the spiritual covering of God. Success is assured for God’s people only when they fight under Jehovah Nissi, the Lord our Banner of Victory.