_Third_, Inquire diligently at your own hearts, whether they come up to the terms of this covenant? You must bid high for the honour of a covenanter, for a part in this privilege. "Which of you," saith our Lord Christ to His hearers, "intending to build a tower, sitteth not down first, and counteth the cost, whether he have sufficient to finish it? Lest haply after he hath laid the foundation, and is not able to finish it, all that behold it, begin to mock him, saying, this man began to build, and was not able to finish." We are met this day to lay the foundation of one tower, and to pull up the foundation of another; we are pulling up the foundation of Babel's tower, and we are laying a foundation for Zion's tower. We have seen some who have heretofore done as much, but they have done no more; when they had laid a foundation for those noble works in taking a solemn oath and covenant, they have never moved a hand after either to build or to pull down, unless it were quite cross to their own engagements, for the pulling down of Zion's tower, and the building of Babylon. And what was the reason of this stand, or contrary motion? this surely was one, they did not gage their own hearts before hand, neither did they sit down to count the cost of such an undertaking. And therefore when they perceived the charge to arise so high, they neither could finish, nor would they endeavour it, but left the work before it looked above the ground; and are justly become a mock and a scorn and a reproach in Israel, these are the men that began in a solemn covenant to build, but could not finish; they had not stock enough either of true honour or honesty (tho' their stock of parts and opportunities was sufficient) to finish this work. Let us therefore sit down seriously and count the cost; yea and consider whether we be willing to be at the cost. To lead you on in this, my humble advice is, that you would catechise your hearts upon the articles of this covenant. Put the question to your hearts, and let every one say this unto himself: Am I indeed resolved sincerely, really and constantly, through the grace of God, in my place and calling, to endeavour the preservation of the reformed religion in the church of Scotland? The reformation of religion in the kingdoms of England and Ireland? Am I indeed resolved in like manner, without respect of persons, to endeavour the extirpation of popery, prelacy? Am I indeed resolved never to be withdrawn or divided by whatsoever terror or persuasion from this blessed union and conjunction, whether to make defection to the contrary part, or to give myself to a detestable indifferency or neutrality in this cause of God? Am I indeed resolved to humble myself for my own sins, and the sins of the kingdom? to amend myself, and all in my power, and to go before others in the example of a real reformation?