Jehovah Nissi

Exodus 17:15 And Moses built an altar, and called the name of it Jehovahnissi:

Nissi means my banner or standard. Jehovah Nissi thus means the Lord my or our banner. This was a revelation that Moses got after defeating the Amalekites at Rephidim. After the victory, he pronounced that "The LORD is my banner."

Whenever armies would march towards battle, they would raise a banner at the front. This banner or a flag would identify them uniquely from the enemy and show where they truly belonged. A flag of one country cannot be the same as the flag of any other. No army can have two flags at the same time to avoid confusion among the troops. This teaches us that when the battle is raging, one should never be neutral; they will be misunderstood or thought of as an accomplice. You should have a side and demonstrate it by siding with the banner where your army assembles. The disciples knew about this when they saw one cast out devils in the name of Jesus, yet he was not walking amongst them. Jesus told them, " Whoever is not against us is for us. "The Philistines also knew this when David was among them, yet they were going to fight their enemy, Israel. They knew that David would turn against them once the battle raged. They had to persuade their king to let him go. 

We face battles daily. But our victory is by God and through God. Christians should identify with the LORD so that they are not mistaken. He fights for us, and He fights very well. That is why the Bible says vengeance belongs to God. We should not fight naturally but rely on the LORD to fight for us spiritually. This is what brought Israelites victory in every battle. The nations around them feared them for that. This is true because in the old times, men first consulted their gods before going for battle. They knew that aid from the other world was essential for their success. David knew it when He always consulted the LORD before any engagement. Saul in his fallen state consulted a medium!

Raising our banner in front of advancing enemy troops is not a luxury or for showmanship; it is a necessity. It may mean a life-or-death scenario. We need to raise our banner so high that it causes a distinction between us and the world, for the Bible says this is the victory we have in Jesus, even our faith. Raise your faith like a banner just like the Israelites raised God as their banner. 

Further scriptures

Joshua 10:14 And there was no day like that before it or after it, that the LORD hearkened unto the voice of a man: for the LORD fought for Israel

1 Samuel 29:9 And Achish answered and said to David, I know that thou [art] good in my sight, as an angel of God: notwithstanding the princes of the Philistines have said, He shall not go up with us to the battle.

Mark 9:38-40 And John answered him, saying, Master, we saw one casting out devils in thy name, and he followeth not us: and we forbad him, because he followeth not us. But Jesus said, Forbid him not: for there is no man which shall do a miracle in my name, that can lightly speak evil of me. For he that is not against us is on our part.

Numbers 33:4 For the Egyptians buried all [their] firstborn, which the LORD had smitten among them: upon their gods also the LORD executed judgments.

Joshua 2:9-12 And she said unto the men, I know that the LORD hath given you the land, and that your terror is fallen upon us, and that all the inhabitants of the land faint because of you. For we have heard how the LORD dried up the water of the Red sea for you, when ye came out of Egypt; and what ye did unto the two kings of the Amorites, that [were] on the other side Jordan, Sihon and Og, whom ye utterly destroyed. And as soon as we had heard [these things], our hearts did melt, neither did there remain any more courage in any man, because of you: for the LORD your God, he [is] God in heaven above, and in earth beneath. Now therefore, I pray you, swear unto me by the LORD, since I have shewed you kindness, that ye will also shew kindness unto my father's house, and give me a true token:

1 Samuel 30:8 And David enquired at the LORD, saying, Shall I pursue after this troop? shall I overtake them? And he answered him, Pursue: for thou shalt surely overtake [them], and without fail recover [all].

1 Samuel 28:5-8 And when Saul saw the host of the Philistines, he was afraid, and his heart greatly trembled. And when Saul enquired of the LORD, the LORD answered him not, neither by dreams, nor by Urim, nor by prophets. Then said Saul unto his servants, Seek me a woman that hath a familiar spirit, that I may go to her, and enquire of her. And his servants said to him, Behold, [there is] a woman that hath a familiar spirit at Endor. And Saul disguised himself, and put on other raiment, and he went, and two men with him, and they came to the woman by night: and he said, I pray thee, divine unto me by the familiar spirit, and bring me [him] up, whom I shall name unto thee.

1 John 5:4 For whatsoever is born of God overcometh the world: and this is the victory that overcometh the world, [even] our faith.

Hebrews 10:30 For we know him that hath said, Vengeance [belongeth] unto me, I will recompense, saith the Lord. And again, The Lord shall judge his people.