But now, He hath this stock of all-sufficiency for none but these that are His members, He actually undertakes for none but those that are actually in Him; "These that Thou hast given Me I have kept." He keeps none but them whom the Father hath given Him; given Him so as to be in them, and they in Him. "I in them, they in Me." Well, if thou wouldst be unchangeable in thy covenant, get interest in Christ who is the covenant; the unchangeable covenant; "The Amen, the faithful and true witness." "Yesterday and to-day, and the same for ever." Get interest, "count all things loss and dung, that thou mayst win Christ, and be found in Christ." Yea, do not only labour to get interest, but prove thy interest. Take not up a matter of so infinite concernment upon trust: all that thou dost covenant to God, and that God doth covenant to thee, depends upon it; and therefore, "work it out with fear and trembling, and give all diligence to make it sure unto thy soul." Study evidences, and be content with none but such as will bear weight in the "balance of the sanctuary;" such as the word will secure; such as to which the word will bear witness, that they are inconsistent with any Christless man or woman, whatsoever; and pray with unwearying supplications that God will not only give thee interest, but clear thy interest, and seal up interest upon thy soul and thee, to the day of redemption. _Second_, study influence when in Christ, then hast thou right to draw virtue from Christ, for behold, all the fulness that dwells in Christ is thine; all that life, and strength, and grace, and redemption, that is held forth in the promise, it is all laid up in Christ, as in a magazine; and by virtue of thy interest in, and union with the Lord Jesus, it is all become thine. Hence you hear the believing soul making her boast of Christ, as before, for righteousness so also for strength. "In the Lord have I righteousness and strength." As righteousness for acceptance, so strength also for performance of such duties, as God in His covenant doth require and expect at the believer's hands: I have no strength of mine own, but in Christ I have enough; "In the Lord I have righteousness and strength." Christ is the lord-keeper, or lord high steward, or lord treasurer; to receive in and lay out, for and to all that are in covenant with the Father. And this is one main branch of God's covenant with the Redeemer, that He gives out to the heirs of promise, wherewithal to "keep their covenant with God;" so that they never depart from Him. "As for Me, this is My covenant with them, saith the Lord, My Spirit that is upon thee, and My words which I have put in thy mouth, shall not depart out of thy mouth, nor out of the mouth of thy seed, nor out of the mouth of thy seed's seed, saith the Lord, from henceforth and for ever." These be the words of God the father to the Redeemer, concerning all His spiritual seed; "the Redeemer shall come to