* 1.1SECT. III.
1. COnsider, a heart set upon heaven, will be one of the most unquestionable evidences of thy sincerity, and a clear dis∣covery of a true work of saving grace upon thy soul. You are much in enquiring after Marks of sincerity, and I blame you not, its dangerous mistaking when a mans salvation lies upon it: You are oft asking, How shall I know that I am truly sanctified? Why, here is a mark that will not deceive you, if you can truly say that you are possessed of it; Even, a heart set upon Heaven. Would you have a sign infall••ble, not from me, or from the mouth of any man, but from the mouth of Jesus Christ himself, which all the e∣nemies of the use of Marks, can lay no exception against? Why here is such a one, Mat. 6.21. Where your treasure is, there will your hearts be also. Know once assuredly where your heart is, and you may easily know that your treasure is there: God is the Saints Treasure and happiness: Heaven is the place where they must ful∣ly enjoy him: A heart therefore set upon heaven, is no more, but a heart set upon God, desiring after this full enjoyment: And surely a heart set upon God through Christ, is the truest evidence of saving grace. External actions are easiest discovered; but those of the heart are the surest evidences. When thy learning will be no good proof of thy grace; when thy knowledg, thy duties and thy gifts will fail thee, when Arguments from thy tongue and thy hand may be confuted; yet then will this Argument from the bent of thy heart prove thee sincere. Take a poor Christian that can scarce speak true English about Religion, that hath a weak understanding, a failing memory, a stammering tongue; yet his heart is set on God, he hath chosen him for his Portion, his thoughts are on E∣ternity, his desires there, his dwelling there; he cryes out, O that I were there; he takes that day for a time of imprisonment, wherein he hath not taken one refreshing view of Eternity: I had rather dye in this mans condition, and have my soul in his souls case; then in the case of him that hath the most eminent gifts, and is most admired for parts and dutie, whose heart is not thus taken