Leviticus 9:22-24

22-24 When the solemnity was finished, and the blessing pronounced, God testified his acceptance. There came a fire out from before the Lord, and consumed the sacrifice. This fire might justly have fastened upon the people, and have consumed them for their sins; but its consuming the sacrifice signified God's acceptance of it, as an atonement for the sinner. This also was a figure of good things to come. The Spirit descended upon the apostles in fire. And the descent of this holy fire into our souls, to kindle in them pious and devout affections toward God, and such a holy zeal as burns up the flesh and the lusts of it, is a certain token of God's gracious acceptance of our persons and performances. Nothing goes to God, but what comes from him. We must have grace, that holy fire, from the God of grace, else we cannot serve him acceptably, Hebrews 12:28. The people were affected with this discovery of God's glory and grace. They received it with the highest joy; triumphing in the assurance given them that they had God nigh unto them. And with the lowest reverence; humbly adoring the majesty of that God, who vouchsafed thus to manifest himself to them. That is a sinful fear of God, which drives us from him; a gracious fear makes us bow before him.