The Christian's war with the flesh is seen in the Israelites' desert experiences as outlined in the Old Testament. This age-old battle is seen in Amalek's attempt to keep Israel out of the land of promise.
The simple statement is made in Exodus 17:8: "Then came Amalek, and fought with Israel in Rephidim." This historical battle furnishes us with a good illustration of the internal warfare every believer in Christ experiences.
Amalek is a type of the flesh. He did not want the Israelites to claim their inheritance in Canaan. Amalek was strong and had high aspirations. He did not like the idea of being subdued but wanted rather to be in control. So it is with our fleshly nature.
Joshua was the leader of the Israelites in this battle. Though he was an able general and fought well, Israel's subsequent victory was not attributed to him or his army but to the Lord.
Moses also fought in the battle--on a mountaintop by prayer and faith. He interceded, using the rod of God as his authority.
As long as he kept his arms and the rod raised, the Israelites were winning. When his arms dropped, then Amalek began to win. Aaron and Hur finally came to his aid and held up his arms as he interceded for Israel. This brought the final victory.
Believers have two members of the Trinity interceding for them--the Holy Spirit and Christ. This assures us of victory. We do not need to fear defeat if we will allow the Spirit of God to have control.
"Wherefore he is able also to save them to the uttermost that come unto God by him, seeing he ever liveth to make intercession for them" (Heb. 7:25).