1054. Hence, we must distinguish the following cases of servile fear:
(a) Fear of punishment is purely servile when it makes a person avoid sin, but does not make him put away his love of God.
(b) Fear of punishment is not purely servile, when it causes a sinner not only to cease from sin, but to give up his affection for sin; this fear is distinct from charity, but prepares for it: “The fear of the Lord driveth out sin” (Ecclus., i. 27).
(c) Still less is the fear of punishment purely servile, when it leads a just man, who already detests sin as an offense against God, to detest it as involving punishment from God. This fear exists along with charity, for the love of God and the right love of self are not exclusive. But, as charity increases, servile fear must decrease; the more a person loves God, the less is he concerned about his own good, the more confidently does he hope in God, and hence the less does he fear penalty.
1055. There are two degrees of filial fear to be distinguished:
(a) Initial fear is that of beginners in charity. On account of past sins, they fear punishments from God; on account of their present love of God, they fear they may be again separated from Him. The second fear is stronger with them, and it commands that the first fear be aroused to hold the will more firmly against whatever might separate from love. Of this fear it is said: “The fear of God is the beginning of His love” (Ecclus., xxv. 16).
(b) Perfected fear is that of those who are established in charity. The more the love of God sways the heart, the more is every other love, that of self included, subjugated to the love of God, and the less is one troubled by the thoughts of evils that may befall self. Even in this present life some souls are so strong in the love of God that all servile fear disappears: “I am sure that neither death nor life ... shall be able to separate us from the love of God” (Rom., viii. 38, 39); “Perfect charity casteth out fear, because fear hath pain, and he that feareth is not perfected in charity” (I John, iv. 18).
1056. The perfected fear of God has two acts:
(a) In the present life, where it is possible that one may offend God and lose His friendship, one dreads the commission of offense and the loss of friendship. This fear should be always with us: “Keep His fear and grow old therein” (Ecclus., ii. 6). With the growth of charity there is a corresponding growth in the fear of separation from God, because the more ardently God is loved, the more one realizes the greatness of the loss sustained through sin.
(b) In eternal life, where sin and separation from God are impossible, the blessed do not fear these evils: “He that shall hear Me, shall rest without terror, and shall enjoy abundance without fear of evils” (Prov., i. 33). But in the presence of the Divine Majesty the Angels and Saints are filled with awe and reverence: “I saw them that had overcome the beast, singing: Who shall not fear Thee, O Lord, and magnify Thy name?” (Apoc., xv. 3, 4); “The pillars of heaven tremble and dread at His beck” (Job, xxvi. 11); “Through whom (Christ) the Angels praise Thy majesty, the Dominations worship it, the Powers are in awe” (Preface of the Mass). This holy fear is unending, for the infinite distance between God and His creatures, His incomprehensibility to them, will never cease: “The fear of the Lord is holy, enduring forever and ever” (Ps. xviii. 10).