Charles Spurgeon Commentary Ephesians 6:13

"Wherefore take up the whole armor of God, that ye may be able to withstand in the evil day, and, having done all, to stand." — Ephesians 6:13 (ASV)

Therefore take to you the whole armor of God,

What stress the apostle lays upon this point! He repeats the command he had just given, and again emphasizes the fact that it is "the whole armor of God" that is to be worn.

There are some professing Christians who only in part obey the injunction here given, but it is no use to wear a part of the Christian armor, and to leave the rest of the soul unarmed. A little leak will sink a ship, and the absence of one piece of the armor of God may cost a man his soul: Wherefore take to you the whole armor of God,–

That you may be able to withstand in the evil day, and having done all, to stand.

That is what we have to do, to keep our place and our standing as Christians right to the end. To be apparently pure and holy for a time is no use at all. Transient professors will find everlasting ruin; but he that shall endure unto the end, the same shall be saved. We are in God's army for life; we can never quit this warfare till God shall call us home.