Armies march into other countries to occupy and subdue. God has not told us to do this. We are not to march but to stand. The word ‘stand’ implies that the ground disputed by the enemy is really God’s, and therefore ours. We need not struggle to gain a foothold on it…
And that is precisely the difference between the warfare waged by the Lord Jesus and the warfare waged by us. His was offensive; ours is, in essence, defensive. He warred against Satan in order to gain the victory…. By the resurrection God proclaimed his Son victor over the whole realm of darkness, and the ground Christ won he has given to us. We do not need to fight to obtain it. We only need to hold it against all challengers…
Today we do not fight for victory; we fight from victory… When you fight to get the victory, then you have lost the battle at the outset… Only those who sit can stand. Our power for standing, as for walking, lies in having first been made to sit together with Christ. The Christian’s walk and warfare alike derive their strength from his position there. If he is not sitting before God he cannot hope to stand before the enemy…
Because victory is his, therefore it is ours.
Sit, Walk, Stand, Tyndale House, 1957/1977, 54-6