1. That they may be engaged in, pursuant to a divine appointment; therefore no creature hath a warrant to enjoin any modes of worship, pretending that this will be acceptable, or well-pleasing to God; since he alone, who is the object of worship, has a right to prescribe the way in which he will be worshipped. To do this would be an instance of profaneness and bold presumption; and the worship performed pursuant thereunto would be _in vain_; as our Saviour says concerning that which has no higher a sanction than _the commandments of men_, Matt. xv. 9. and whatever pretence of religion there may be therein, God looks upon such worshippers as well as those whose prescriptions they follow herein, with the utmost contempt, and will punish them for, rather than encourage them in it. Thus the prophet reproves Israel, as being guilty of defection from God, who engaged in that worship which he had not ordained, when he says, _The statutes of Omri are kept, and all the works of the house of Ahab, and ye walk in their counsels, that I should make thee a desolation, and the inhabitants thereof an hissing. Therefore shall ye bear the reproach of my people_, Mic. vi. 16. And Jeroboam is often branded with this character, that _he made Israel to sin_, for instituting ordinances of divine worship, and _setting up calves in Dan and Bethel, making an house of high places, and priests of the lowest of the people_, and appointing sacred times, in which they should perform this worship; all which were of his own devising, and became a snare to the people, Exod. xx. 24. It is certain, that such appointments cannot be reckoned means of grace, or pledges of God’s presence; and it would redound to his dishonour, should he be obliged to communicate the benefits of Christ’s redemption hereby, to any who, (under a pretence of worshipping him in a way of their own devising,) offer the highest affront to him. 2. If God is pleased to reveal his will concerning the way in which we are to worship him, and hope for his presence, it is our indispensable duty to comply with it, and implore his acceptance of us herein; and be importunate with him, that he would put a glory on his own institutions, and grant us his special presence and grace, that we may be enabled to perform whatever duty he enjoins, in such a manner, that the most valuable ends may be answered, and our spiritual edification and salvation promoted thereby.