give up our faith in the Lord Jesus Christ. No intelligent student of the Bible can retain his faith in the inspiration and authority of that Book, or his faith in the Lord Jesus Christ, if he gives up belief in the existence of a personal Devil. As intelligent men and women, we must take our choice between believing in the existence of a personal Devil or giving up our faith in Jesus Christ and Christianity. _Any system of doctrine that denies the existence of a personal Devil is radically unchristian whatever name it may arrogate to itself._ 2. The second thing that the Bible teaches as to the nature of the Devil, is that, _the Devil is a being of very great power and authority_. This comes out in the verses we have just read, Eph. 6:10, 11: +"Finally be strong in the Lord, and in the power of his might. (11) Put on the whole armour of God, that ye may be able to stand against the wiles of the devil."+ These words make it clear that the Devil is so mighty that the people of God cannot resist his cunning wiles without having on the whole armour of God, and it is also evident from the 10th verse that we cannot resist his power unless we are strengthened with the strength of God. And this is not all: in the 12th verse we read: +(12) "For our wrestling is not against flesh and blood, but against the principalities, against the powers, against the world rulers of this darkness, against the spiritual hosts of wickedness in the heavenly places."+ These are tremendous words. If they mean anything, they certainly mean that there are beings of great authority and dignity who are under the leadership of the one supreme being of evil, the Devil. The conflict that we have on hand as believers in Christ is terrific. The conflict that the Allies have on hand with the mighty military forces of the Kaiser is nothing to the battle we have on hand with the Devil and his hosts. We are fools if we underestimate the battle. On the other hand, we must not over-estimate it. While our conflict is with the Devil, and while our wrestling is against "the principalities," against "the powers," against "the world-rulers," against "the spiritual hosts of wickedness," nevertheless He that is for us is far mightier than they. The Devil is mighty but our Saviour is almighty. It is quite possible for one to become morbid over this subject of the Devil, and to become utterly discouraged and even deranged. That is entirely unnecessary and unwarranted. While our conflict is with the Devil and his mighty hosts, God has provided for us a strength and an armour whereby we may "be able to quench all the fiery darts of the Evil One" and to "withstand in the evil day, and having done all to stand" (v. 13).