What became of them who offered strange fire on God’s altar? See Lev. x.: “And Nadab and Abihu, the sons of Aaron, took either of them his censer, and put fire therein, and put incense thereon, and offered strange fire before the Lord, which he commanded them not. And there went out fire from the Lord, and devoured them, and they died before the Lord.” That was a little matter; only slightly tampering with the worship; simply introducing a new element, which the Lord commanded them not, or did not command them. It is a fearful thing to tamper with the worship. In one word: “If _every transgression_ and disobedience received a just recompense of reward,” in God’s dealings with men in former ages, how shall we escape if we neglect so great salvation? If God allowed no departures in the typical worship, why should we assume that he will permit it in the worship typified? If everything had to be done according to the patterns given to Moses in the typical dispensation, how can any man infer that we may depart from the substance? We had better take heed now. We may not add any thing, nor take any away from what the Lord gave. We may not preach any other gospel, or even pervert the gospel of Christ. It was a little matter to charge that Jesus had “an unclean spirit,” but those who did it sinned against the Holy Spirit, and are in danger of “eternal damnation.” It was a little matter for Ananias and Sapphira to lie about the price of their possessions, but it was soon followed by a judgment from the Lord. It was a little matter for the Corinthians to get up a feast when they met to worship, but on account of it many were sickly, weakly, and some had died. Some of the little matters now among us will be found sufficient to stop the ark of God, and cause more than three thousand to be defeated. If Moses were to address some of our men, he would say to them, as he did to Aaron, “What hath this people done to thee that thou hast brought so great a sin upon them?” or as Joshua said to Achan: “Why hast thou troubled us? The Lord shall trouble thee this day.” Let us hear and live. ONE IDEA ISM.