Therefore put on the full armor of God, so that when the day of evil comes, you may be able to stand your ground, and after you have done everything, to stand
Paul says, “When the day of evil comes,” not “If the day of evil comes” because nothing is more certain than the conflict in the heavenly realm. It’s important to understand what Paul means here. While every day has its share of evil, not every day is the “evil day.”
There are moments in life when we feel the heat of battle in a big way. In those days temptation flares up, tempers grow short, friends turn against us, discouragement sets in, and we feel like giving up.
I had my share of an evil day some time ago but one thing I got from it all was, there is no one beyond the evil day experience. The “day of evil” comes sooner or later for all us. And it comes again and again.