What does the Bible say about the spiritual warfare against the flesh?

In Exodus 17, the encounter with Amalek represents the internal struggle every believer faces after salvation. The Amalekites, descendants of Esau, symbolize the flesh that rises up against the redeemed. Once Israel was delivered from Egypt, they were immediately faced with this battle, highlighting that deliverance does not eliminate the sinful nature but introduces the necessity of spiritual warfare. This inner conflict is described in Galatians 4:29, where it is clear that as long as we live, the battle with the flesh will persist. Thus, the biblical narrative emphasizes the importance of recognizing and confronting this ongoing struggle.