Theophylact of Ohrid, on 1John 4:18

“Fear is not in charity: but perfect charity casteth out fear, because fear hath pain. And he that feareth, is not perfected in charity.”

“For, having attained perfection in love through good deeds, we shall be far from fear. In confirmation of this he also adds: perfect love casts out fear. What fear? He himself says that it is the fear of torment. For it is possible to love someone even out of fear of punishment. But such fear is not perfect, that is, it is not characteristic of perfect love. Having said this about perfect love, he necessarily says that we must love God because He first loved us, and since He first did us good, we must all the more compel ourselves to repay Him for it. Based on the words of David: "Fear the Lord, you His saints, for there is no want to those who fear Him" (Ps. 33:10), some will ask: how does John now say that perfect love casts out fear? Are God's saints really so imperfect in love that they are commanded to fear? We answer. Fear is of two kinds. One is introductory, to which torment is attached. A person who has committed evil deeds approaches God with fear, and approaches in order not to be punished. This is the preliminary fear. The other fear is perfect. This fear is free from such dread; which is why it is called pure and enduring forever (Ps. 18:10). What then is this fear, and why is it perfect? Because the one who possesses it is completely captivated by love and strives in every way to lack nothing of what one who loves deeply must do for the beloved.”

Imported from an open dataset — not yet checked against the printed edition.