“Finally, my brethren, be strong in the Lord and in the power of His might.”
This is written to all the brothers and sisters in Christ in The Church for all ages — Ephesians was written as a “Cyclical Epistle” to be read to all the churches [The Letter to the Ephesians, The Pillar New Testament Commentary, Eerdmans, Grand Rapids, Michigan, p. 5].
It is “not by might nor power, but by My Spirit says the Lord” Zechariah 4:6
It’s HIS MIGHT we need so badly to contend with the opposition which is named, below...
Put on the whole armor of God, that you may be able to stand against the wiles of the devil.
Whole (Complete, Full Armor, leaving none of its necessary components missing)...
Why? That we might stand against the wiles (schemes...