Here it must be carefully observed, 1. That the two first reasons for marriage, (concupiscence and the will of parents,) or any such like, have their strength but in subordination to the third (the final cause, or interest of God and our salvation). And that this last reason (from the end) is of itself sufficient without any of the other, but none of the other are sufficient without this. If it be clear that in a married state you have better advantages for the service of God, and doing good to others, and saving your own souls, than you can have in a single state of life, then it is undoubtedly your duty to marry; for our obligation to seek our ultimate end is the most constant, indispensable obligation. Though parents command it not, though you have no corporal necessity, yet it is a duty if it certainly make most for your ultimate end. 2. But yet observe also, that no pretence of your ultimate end itself will warrant you to marry, when any other accident hath first made it a thing unlawful, while that accident continueth. For we must not do evil that good may come by it. Our salvation is not furthered by sin; and though we saw a probability that we might do more good to others, if we did but commit such a sin to accomplish it, yet it is not to be done. For our lives and mercies being all in the hand of God, and the successes and acceptance of all our endeavours depending wholly upon him, it can never be a rational way to attain them, by wilful offending him by our sin! It is a likely means to public good for able and good men to be magistrates and ministers; and yet he that would lie, or be perjured, or commit any known sin that he may be a magistrate, or that he may preach the gospel, might better expect a curse on himself and his endeavours, than God's acceptance, or his blessing and success; so he that would sin to change his state for the better, would find that he changed it for the worse: or if it do good to others, he may expect no good but ruin to himself, if repentance prevent it not. 3. Observe also, that if the question be only which state of life it is (married or single) which best conduceth to this ultimate end, then any one of the subordinate reasons will prove that we have a call, if there be not greater reasons on the contrary side. As in case you have no corporal necessity, the will of parents alone may oblige you, if there be no greater thing against it: or if parents oblige you not, yet corporal necessity alone may do it: or if neither of these invite you, yet a clear probability of the attaining of such an estate or opportunity, as may make you more fit to relieve many others, or be serviceable to the church, or the blessing of children who may be devoted to God, may warrant your marriage, if no greater reasons lie against it; for when the scales are equal, any one of these may turn them. [Sidenote: Who may not marry.]