I imagine a busload of tourists driving through a beautiful national forest. The forest is rich and beautiful.
There is a reason we are given the imagery of armor in preparation for the life before God in Ephesians 6. This imagery is used because our life is a fight. It is a constant fight against the things which keep us from getting to God. Closeness to God is our ultimate good as indicated in Psalm 73, but our life is always full of things which prevent us from that ultimate good of closeness. Those things never cease to present themselves each day. They must be fought and laid aside so we may continue to come closer to God.
This is why Ephesians 6 gives us a whole and complete armor for our daily fight. Every day we are to prayerfully and intentionally put on this armor that we might fight back all those things which prevent us from getting to God.
The life of the follower of Jesus is anything but lazy. The life after Jesus is a fight, and if we fight correctly each day it will only be done with the strength of Jesus Christ found in intentional prayer.
Peter's denial of his impending denial in Matthew 26 is a reminder to every follower of Jesus that over-confidence is the first step toward falling. The more confident we are in our own dedication, devotion, and ability to withstand temptation the further down we have let our guard.
We are like a fighter who gets so confident in our ability, we start to let down our guard to a point when our formidable foe takes the chance we gave him in our over-confidence to knock us out.
When Jesus tells his disciples [us] that we will fall away, it ought to be a sobering reminder to take this seriously and realize we are not as strong as we think we are. We ought to humbly keep our guard up.