Spiritual Warfare - Strong in the Lord

The sermon opens with a warning about false apostles within the Church who speak deceptively but are actually servants of Satan. Even Satan himself disguises himself as an angel of light, so his servants also disguise themselves as servants of righteousness. This reveals that spiritual warfare is not obvious but occurs beneath the surface of outward appearances.

The sermon develops the thesis that all of us were once dead because of sin and transgression, living according to the desires of the flesh and the passions of the mind. We once followed the ruler of the kingdom of the air, the spirit that is now at work in those who are disobedient. However, Christ has become our peace, uniting both Jews and Gentiles into one body and destroying the barrier of hostility through the cross. This allows us to understand that the real battle is not against flesh and blood, but against the powers and authorities, the rulers of the darkness of this age, and the spiritual forces of evil.

The sermon emphasizes that we must be alert and sober because our enemy, the devil, prowls around like a roaring lion looking for someone to devour. We must not fight with worldly weapons, but with the power of God to demolish strongholds and refute arguments. To stand firm against the devil's schemes, we must put on the full armor of God and stand firm in faith. The sermon concludes that our strength comes from being strong in the Lord and in his mighty power.

Finally, the sermon applies the message to practical life by emphasizing that believers need to be strong in the Lord by using the spiritual weapons that God has provided. We must recognize that real battles are not material or social conflicts, but spiritual battles against darkness. By understanding the nature of our enemy and the power of God, we can live a life of victory and help others recognize God's protection and power.