Just a thought, maybe more than a thought. Perhaps a fear. A fear of imagining what it'd be like to dwell upon the earth during the Woe trumpets proclaimed in Revelation 8:13 Then I looked, and I heard an eagle flying in midheaven, saying with a loud voice, "Woe, woe, woe to those who dwell on the earth, because of the remaining blasts of the trumpet of the three angels who are about to sound!" (NAS) This would be absolutely terrifying. Yet, those who are unredeemed and know not the Lord of Salvation, then they would still attempt to deny the truth they'll witness with their own eyes.
Saw a church sign today that said "If you are living as if there is no God, you better be right!" Another sobering thought.
I thank God Almighty that He has given a Spirit to us with which we can have assurance and hope in. A spirit that gives us strength and power to fight the uphill battle that weakens our human legs and burdens our fallen bodies. The despair that was once had has been defeated in the victory of calvary, and the Apostle Paul in Romans 8:13-14 said, for if you are living according to the flesh, you must die; but if by the Spirit you are putting to death the deeds of the body, you will live. (14) For all who are being led by the Spirit of God, these are sons of God.
Be assured that we will always be at war, but engaged in a war that vanquishes the enemy little by little until at last....complete victory.