2. The helpfulness is undeniable; a heart from this engagement may fetch renewed strength continually. This engagement is a buckler of defence to arm us against Satan's enticement, is armour of proof to withstand the world's inducement; it makes us without fear or failing stand upon our own ground, and renew our courage like the eagle. Job was probably sometimes seduced with such foolish persuasions, to courses not less foolish, but he yielded not: what helped him? even his engagement: "I have made a covenant with mine eyes, how then shall I look on a maid?" Constancy in good is well-pleasing to God; "If any draw back, His soul hath no pleasure in them." Whatsoever then is needful for it, or helpful to it, He both prescribes and approves. O let us engage our hearts to this approachment, a duty enjoined, a sacrifice accepted. But there is one scripture that fully showeth the point, and the truth of it in all particulars. Consider then. Three things may seem necessary herein to be noted; the act, the approbation, and the reason; and here we have them all. 1. The act, engaging; or the persons, the engagers of themselves. Thou hast avouched, set up God this day to be thy God, not only in thy conscience by the act of faith, but even by thy mouth thou hast uttered this, probably in some solemn league and covenant. "Thou hast made to say:" so much the Hebrew word imports. 2. The approbation; and God answers thee accordingly, He hath avouched, set up thee to be His people; particularly to two privileges; 1. To be His peculiar people, the people of His own proper possession, joined so high, united so near, that they are admitted to a participation of many heavenly privileges; the actions of the one being communicated to the other; man's prayer is called God's, "I will make them glad in the house of My prayer," God's people called man's, Moses's people, Moses's law: so in the law of God, and in his law, that is, the righteous man's law. 2. To keep His commands: this seems rather to be a duty than a prerogative, yet a prerogative it is for a Christian to be holy, obedient, righteous: both directly, and accidently. 1. Directly; the scripture teacheth so. The fruit of a Christian's being made free from sin is unto holiness. "If you will fear the Lord and serve Him" (these are Samuel's words to the people) "and not rebel:" what then? what shall we have? "Then shall you and your king continue to follow the Lord." Solomon, setting down the recompence of a righteous person, saith, his reward shall be double, in himself, and in his posterity; in himself, "he shall walk on in his integrity," in his posterity, "they shall be blessed after him." 2. Accidently: holiness is a privilege, as well as a duty; it is a reward, a benefit to him who walks therein. It may, and oft doth daunt their persecutors, that otherwise would have taken away their lives. The heathens observe that the majestic presence of a prince