The most likely author of Ephesians 6:10-11 is the Apostle Paul. Paul is traditionally attributed as the author of the letter to the Ephesians, and his authorship is widely accepted within evangelical Christian circles.

Paul was a prominent figure in the early Christian church and is known for his missionary journeys and the numerous letters he wrote to various churches and individuals. He was a fervent preacher and teacher of the Christian faith, and his writings are highly regarded within evangelical Christianity as authoritative and inspired by God.

In Ephesians 6:10-11, Paul encourages believers to be strong in the Lord and to put on the whole armor of God in order to stand against the schemes of the devil. This passage is often cited in sermons and teachings within evangelical Christian churches as a call to spiritual warfare and the importance of relying on God’s strength and protection in the Christian life.

Overall, from an evangelical Christian perspective, the authorship of Ephesians 6:10-11 is attributed to the Apostle Paul, and the passage is viewed as a powerful exhortation to believers to stand firm in their faith and rely on God’s strength in the spiritual battles they face.