The foe. The Christian life is a warfare. In order to wage this successfully we must understand the nature of the foes we have to contend with, because the weapons and armor will have to be selected according to the character of the attack that is made upon us.
I. THE NATURE OF THE FOE.
1. Negatively considered.
2. Positively considered.
II. THE CHARACTER OF THE WARFARE, Mediaeval armor is useless before rifle-bullets. Old castle walls are no protection against modern artillery. Nor will modern cannon drive back noxious gases. Sennacherib's hosts were powerless before that invisible angel of God, the pestilence. So the foe in the Christian warfare determines the character of the armor and weapons and the tactics to be pursued.
1. Negatively.
2. Positively.