Solomon saith, Prov. x. 9, "He that walketh uprightly walketh surely." And perfection and uprightness are the characters of Job, Job i. 1, 8; ii. 3. And in the Scripture to be upright or righteous, and to walk uprightly, and to do righteously, are the titles of those that are acceptable to God. And by uprightness is meant not only sincerity as opposed to hypocrisy; but also rectitude of heart and life, as opposed to crookedness or sin; and this as it is found in various degrees: of which we use to call the lowest degree that is saving by the name of sincerity, and the highest by the name of perfection. Concerning uprightness of life, I shall, I. Briefly tell you some of those blessings that should make us all in love with it, and, II. Give you some necessary rules of practice. 1. Uprightness of heart and life is a certain fruit of the Spirit of grace, and consequently a mark of our union with Christ, and a proof of our acceptableness with God. "My defence is of God, who saveth the upright in heart," Psal. vii. 10. "For the righteous Lord loveth righteousness, and his countenance doth behold the upright," Psal. xi. 7. It is a title that God himself assumeth; "Good and upright is the Lord," Psal. xxv. 8. "To show that the Lord is upright, he is my Rock, and no unrighteousness is in him," Psal. xcii. 15. And God calleth himself the Maker, the Director, the Protector, and the Lover of the upright. "God made man upright," Eccl. vii. 29. "The Lord knoweth the way of the righteous," Psal. i. 6. "What man is he that feareth the Lord? him will he teach in the way that he shall choose," Psal. xxv. 12. "He layeth up sound wisdom for the righteous; he is a buckler to them that walk uprightly," Prov. ii. 7.