“A thorough knowledge of the enemy and a healthy respect for his prowess are a necessary preliminary to victory in war. Similarly, if we underestimate our spiritual enemy, we shall see no need for God's armor, we shall go out to battle unarmed with no weapons but our puny strength, and we shall be quickly and ignominiously (embarrassingly) defeated.” John Stott, The Message of Ephesians, regarding Ephesians 6:10-18.
If you knew that your enemy had 3 characteristics as being powerful, wicked and shrewd, you would not fight against this opponent without assistance, or the proper gear.
Notice also that the descriptions of whom is in this spiritual war are not in singular form but plural - rulers, authorities, cosmic powers, spiritual forces of evil.
There is more than one opponent against the believer, which is why we are to be praying at all times, for all the saints (Christians) requesting help from God.
The military doesn’t enter a combat situation without a strategy, weapons, or protective gear, and it’s never a one man show. The same is true for the believer: our strategy is Scripture, our weapons are prayer and the Body of Christ collectively praying for each other, and our protective gear is wearing the armor of God.
If you don’t think you’re in a spiritual battle now, you might be either blind, or in a spiritual coma, but there’s a spiritual war going on in everyone’s life and they need prayer.
Who are you praying for that’s going through a battle right now? How often will you pray for them? Will you pray until the enemy is defeated?
Don’t go into battle alone or unprepared.