_Direct._ XIV. Remember that no material duty is formally a duty at all times: that which is a duty in its season, is no duty out of season. Affirmative precepts bind not to all times (except only to habits, or the secret intention of our ultimate end, so far as is sufficient to animate and actuate the means, while we are waking and have the use of reason). Praying and preaching, that are very great duties, may be so unseasonably performed, as to be sins: if forbearing a prayer, or sermon, or sacrament one day or month, be rationally like to procure your help or liberty to do it afterward, when that once or few times doing it were like to hinder you from doing it any more, it would be your duty then to forbear it for that time (unless in some extraordinary case): for even for the life of an ox or an ass, and for mercy to men's bodies, the rest and holy work of a sabbath might be interrupted; much more for the souls of many. Again I warn you, as you must not pretend the interest of the end against a peremptory, absolute command of God, so must you not easily conclude a command to be absolute and peremptory to that which certainly contradicts the end; nor easily take that for a duty, which certainly is no means to that good which is the end of duty, or which is against it. Though yet no seeming aptitude as a means, must make that seem a duty, which the prohibition of God hath made a sin. _Direct._ XV. It is ever unseasonable to perform a lesser duty of worship, when a greater should be done; therefore it much concerneth you to be able to discern, when two duties are inconsistent, which is then the greater and to be preferred: in which the interest of the end must much direct you; that being usually the greatest which hath the greatest tendency to the greatest good. _Direct._ XVI. Pretend not one part of God's worship against another, when all, in their place and order, may be done. Set not preaching and praying against each other; nor public and private worship against each other; nor internal worship against external; but do all.