The Christian engaged in the spiritual battle should be strong in the Lord by putting on the whole armor provided by God—that is, Christ and all his gifts—and doing everything by God’s help to stand firm in Christ, in his victory and his gifts which he has already obtained and secured for us.
From the sermon series on the book of Ephesians, watch Pastor Reuel Dawal’s sermon on Ephesians 6:11-13, particularly on Paul’s exhortation, “Put on the whole armor of God.”