Eternal Security by Arthur W. Pink
Eternal Security is the teaching that God shall with no uncertainty bring into their eternal inheritance those who are actually justified—delivered from the curse of the law and have the righteousness of Christ reckoned to their account—and who have been begotten by the Spirit of God. And further it is the teaching that God shall do this in a way glorifying to Himself, in harmony with His nature and consistent with the teaching of Scripture concerning the nature of those who are called saints.