The security of the real Christian is complete and entire, wanting nothing. There are, however, some very false and therefore very dangerous notions abroad as to the nature of Christian security. A false security is worse than none at all, for it breeds carelessness and false confidence. True security demands knowledge of the conditions on which it rests. "Wherefore let him that thinketh he standeth take heed lest he fall" (1 Cor. 10:12). We propose to study some of the great security promises in order that their truth may safeguard our souls and keep us from presumptuous sins. In this way we shall know the true security promised to all of God's children. It is not our wish to be argumentative, although argument is involved when contrasting points of view are set forth against each other. - Preface.