Jeremiah warned about a physical battle. But his words also apply to the spiritual battle for us. How can we apply the following Scripture to our lives today?

Jer 46:3-5
"Prepare your shields, both large and small, and march out for battle! Harness the horses, mount the steeds! Take your positions with helmets on! Polish your spears, put on your armor! What do I see? They are terrified, they are retreating, their warriors are defeated. They flee in haste without looking back, and there is terror on every side," declares the LORD.

Paul tells us about this spiritual battle in Ephesians 6. (Eph 6:11-17) Paul calls the shield a shield of faith. According to Jeremiah 46 we prepare our faith, both large and small.

Jeremiah tells us to put our helmets on. Paul calls it the helmet of salvation. Jeremiah tells us to polish (that word means sharpen) our spears. Our spears according to Paul are our swords, the Word of God. If we polish our spears, we hone our knowledge of God’s Word.
Jeremiah and Paul tell us to put on our armor and take up our positions and stand firm. Look what happens. Our enemy will flee. He is, after all, already defeated.

The people in Jeremiah’s day were told to be physically prepared and armed. Many times they didn’t even have to fight. Our struggle, as stated by Paul, is not against the physical flesh and blood, but against the spiritual forces of evil in the heavenly realms. Put on the full armor of God and maintain a firm stand.