1. Take heed of "profaning this covenant," by an unholy life. Remember you have made a covenant with heaven; then do not live as if you had made a "covenant with hell or were come to an agreement with death," as the prophet Isaiah characters those monsters of profaneness. Take heed also of "corrupting this covenant," by an unholy gloss. Wo be unto those glossers that corrupt the text, pervert the meaning of these words: who attempt to expound the covenant by their own practice, and will not regulate their practice by the covenant. The apostle Peter speaks of Paul's writings, "That in them some things are hard to be understood, which they that are unlearned and unstable wrest, as they do also the other scriptures, to their own destruction." We may fear, that tho' the text of this covenant be easy to be understood, yet some (who, at least think themselves learned), and whom we have found not only stable but stiffened in their own erroneous principles and opinions, will be trying their skill, if not their malice, to wrest, or, as the Greek imports, to torture and set this covenant upon the rack, to make it speak and confess a sense never intended by the composers, or proposers of it: and whereof (if but common ingenuity be the judge) it never will, nor can be found guilty. All that I shall say to such is that in the close of the verse quoted from the apostle Peter, let them take heed such wrestings be not (worst to themselves, even) to their own destruction. 2. Take heed of delaying to perform the duties of this covenant. Some, I fear, who have made haste to take the covenant, will take leasure to act it. It is possible, that a man may make too much haste (when he swears, before he considers what it is) to take an oath; but, having taken it upon due consideration, he cannot make too much haste to perform it. "Be not rash with thy mouth," saith the preacher. That is, do not vow rashly, but, "When thou vowest a vow unto God, defer not to pay it: for He hath no pleasure in fools (slow performance is folly); pay that which thou hast vowed." Speedy paying (like speedy giving) is double payment; whereas slow payment is no payment or as bad as none, for it is foolish payment. A bond, if I mistake not, is presently due in law, if no day be specified in the bond. It is so I am sure in this covenant; here is no day set down, and therefore all is due the same day you take it. God and man may sue this bond presently for non-payment: the covenant gives no day, and therefore requires the next day, every day. It is not safe to take day for payment, when the obligation is _in terminis de praesenti_, and none is given.