What does the name Jehovah Nissi mean?

The name Jehovah Nissi means "I am your banner." Moses gave this name to the altar he built after Israel defeated the Amalekites, when Moses' arms were held up, as recorded in Exodus 17. It identifies God as the banner over His people.

Les teaches that Jehovah Nissi means "I am your banner." In Exodus 17, after Israel defeated the Amalekites when Moses' arms were held up by Her and Aaron, Moses built an altar and called its name Jehovah Nissi. This is one of the compound names of Jehovah in Scripture, alongside Jehovah Rapha, which means "I am the LORD that healeth thee," and Jehovah Shalom, which means "I am your peace." These names show God meeting every need of the nation of Israel.

Exodus 17:15

And Moses built an altar, and called the name of it Jehovahnissi:

What does the name Jehovah Nissi mean that Moses gave the altar in Exodus 17:15?

Jehovah Nissi translates as "He is our banner." Moses gave this name to the altar after Israel’s conflict with Amalek to acknowledge that God Himself fought the battle, using Israel’s men but controlling the outcome. The banner is like a flag or marching flag, showing God’s leadership and victory on behalf of His people.