Charles Spurgeon Commentary Ephesians 6:10

"Finally, be strong in the Lord, and in the strength of his might." — Ephesians 6:10 (ASV)

Finally, my brethren, be strong in the Lord, and in the power of his might.

Everything depends upon that. Whether you are called upon to work, or to wait, or to watch, or to suffer, you need to be strong. If you are not yourself strong, the very armor that you wear will be a burden to you. It is of the utmost importance that Christians should be as strong in grace as they can possibly be. And the power that is to be in them is to be the power of God: the power of his might. What a wonderful power that is!

The power of flesh is weakness, and the power of man is fading, but the power of God is almighty and unchangeable; and if we can be girded with this power, there is scarcely any limit to what we may successfully attempt.

"Finally," – as if this were a matter of the highest importance, to be considered first and last – Finally, my brethren, be strong in the Lord and in the power of his might.

You know how strong Paul himself was; he was a veritable giant for Christ. And he here calls upon his brothers to be as he was. He did not want to be brother to dwarfs, so he appealed to his brothers to be strong in the Lord, and in the power of his might.

Finally, my brethren, be strong in the Lord,

You cannot do right if you are not strong. Unless you have the backbone of principle – unless you have spiritual muscle and sinew by the indwelling of the Holy Ghost in you – you cannot continue to do that which is right. Finally, my brethren, be strong in the Lord.