Many people are uncomfortable with the word fear in relation to the Christian life. That may be because we confuse the fear of the Lord with the petty fears of this world. Some Bible translations use the word reverence where the word fear is indicated. I don’t think that is completely wrong. But the word reverence is not strong enough. It does not bring to our minds enough force of emotion. We are to tremble in fear before God. In Leviticus 9 we read about the first offering offered in the tabernacle in the wilderness.
Fire came out from the presence of the Lord and consumed the burnt offering and the fat portions on the altar. And when all the people saw it, they shouted for joy and fell facedown.
We come into the presence of our Lord before whom John fell down as a dead man. If you begin by thinking about the majesty and holiness and grace of God you can call upon him trembling in such reverent and joyful fear.
In 1 Peter 1:17-19 Peter writes,
And if you call on him as Father who judges impartially according to each one’s deeds, conduct yourselves with fear throughout the time of your exile, knowing that you were ransomed from the futile ways inherited from your forefathers, not with perishable things such as silver or gold, but with the precious blood of Christ, like that of a lamb without blemish or spot.