Commentaries:
The fear of the Lord is not something that comes naturally but that must be learned. It is in fact the essence of true religion. An "essence" is what makes something what it is; it is the real nature of a thing. The fear of the Lord is the real nature of the religion, the way of life, of God.
It is in us to fear instinctively when we are little children. We fear being left alone. We fear falling. We fear sudden noises. We fear the dark and lightning and thunderstorms. We fear many things almost instinctively because our first reaction is always to protect the self. Not all of these fears are wrong or negligible by any means, for they are what cause us to act to preserve our lives.
The fear of God does not come so naturally. We have to begin doing it consciously, and we have to learn to do it and grow in it. The Bible shows that it is not in man to fear God instinctively.
John W. Ritenbaugh
The Fear of God