And Moses built an altar, and called the name of it Jehovahnissi: For he said, Because the LORD hath sworn that the LORD will have war with Amalek from generation to generation. Exodus 17:15-16 (KJV)
Ponder and brood on the name Jehovah Nissi by praying in the Spirit while holding that name in mind.
Meditate by repeating these:
Jehovah Nissi, you are my banner
Jehovah Nissi, I pledge allegiance to you
(EXALT/BEHOLD HIS NAME THEN SPEAK THE NAME OVER SITUATIONS OR PEOPLE)