What does the Bible say about spiritual warfare?

Ephesians 6:11-12Put on all of God’s armor so that you will be able to stand firm against all strategies of the devil. For we are not fighting against flesh-and-blood enemies, but against evil rulers and authorities of the unseen world, against mighty powers in this dark world, and against evil spirits in the heavenly places.

Spiritual warfare requires preparation—through prayer, unwavering faith, and knowledge of biblical truth—to defeat our spiritual enemy.

1 Peter 5:8Stay alert! Watch out for your great enemy, the devil. He prowls around like a roaring lion, looking for someone to devour.

We must be alert at all times for the sneak attacks of the devil.

James 4:7So humble yourselves before God. Resist the devil, and he will flee from you.

Philippians 2:10At the name of Jesus every knee should bow, in heaven and on earth and under the earth.

When we resist the devil in the name and power of Jesus, he will flee from us. At the name of Jesus, Satan has no power.

Matthew 4:1-4Then Jesus was led by the Spirit into the wilderness to be tempted there by the devil. For forty days and forty nights he fasted and became very hungry. During that time the devil came and said to him, “If you are the Son of God, tell these stones to become loaves of bread.” But Jesus told him, “No! The Scriptures say, ‘People do not live by bread alone, but by every word that comes from the mouth of God.’”

When under attack by Satan, Jesus relied on the word of God to combat the lies of his adversary.