Everything that the Lord has ever done for mankind since the sin of Adam, has been done solely to bring man back into harmony with His law.
The establishment of ordinances; the giving of His law; the sending of His prophets; the sending of His Son, "that Prophet" greater than all; the gift of His Holy Spirit; and the gifts of the Spirit -- all, everything, that has been given, established, or employed by the Lord, has been to bring men to obedience to His law.
In bringing men to His law He is bringing them to Himself; for it is written: Thou "testifiedst against them, that Thou mightest bring them again unto Thy law," and "testified against them to turn them to Thee" (Neh. 9:29, 26). Read carefully the whole chapter, and see the object of all that He did. Bringing men to His law is only turning them to Himself; because "God is love," and this is the love of God, that we keep His commandments."
No higher attainment than the love of God can ever be reached by any soul in the wide universe. And since it is the love of God, and only the love of God, "that we keep His commandments," it is the very certainty of truth that no higher attainment than the keeping of the commandments of God can ever be reached by any soul in the wide universe.
Jesus said, "I have kept My Father's commandments, and abide in His love," and "I and My Father are one." There can not possibly be any higher nor any better attainment than oneness with God: than likeness to Christ, who is one with God. And as He kept the Father's commandments and abode in His love, and abode in His love by keeping His commandments, so there is no higher nor better thing that could possibly be attainable than the keeping of the commandments of God.
The greatest gift of God to men is the gift of His only-begotten Son, Jesus Christ. Yet with this wondrous gift to men, even in Christ nothing avails on the part of men "but faith which worketh by love." Faith is the gift of God, and, working by love, works only by the love of God. And "this is the love of God, that we keep His commandments." Therefore it is certain that the one great object of the very gift of Christ, and of faith in Him, is to bring men to the keeping of the commandments of God, to faithful obedience to His law.
The greatest gift God can bestow on men through Jesus Christ, the only means of this gift to men, is His Holy Spirit. Yet in this gift all that He does, all that He can do, is to cause men to know the love of God: for "the love of God is shed abroad in our hearts by the Holy Ghost which is given unto us" (Rom. 5:5).