6 For God, who commanded the light to shine out of darkness, hath shined in our hearts, to give the light of the knowledge of the glory of God in the face of Jesus Christ. 2 Corinthians 4:6 (KJV)
The principle of the New Covenant is a first-hand individual revelation of Christ as the knowledge of God in terms of glory in the heart of the believer. Every individual believer only comes into true Christianity by a revelation of Christ in his or her heart, so that the knowledge of Christ is all their own, and as real as when God commanded light to shine in darkness. But that is not all. That shining must be progressive. Christ is far too vast to be seen in more than minute degrees at any one time. The bulk of the New Testament is taken up with getting Christians to see what an immense realm it is into which they have come, and how they must go on… Christianity can only be kept living and fresh and full of impact as Christians are living in an ever-growing apprehension of Christ as the Holy Spirit reveals Him in the heart.
This apprehension may only come as necessity is laid upon us by reason of suffering and trial. Capacity will increase by the stretching of suffering (see Hebrews 12, and read “child-training” for “chastening”). There is no succession in Christianity other than that of the revelation of Christ to the heart by the Holy Spirit. It is not a system to be perpetuated, but a Life to be possessed. The value of the Scriptures is that they contain depths and fullnesses which have never yet been fathomed; and when we speak of “revelation” we do not mean anything extra to them, but of that which is in them, but only known by the inward “writing” and “shining” of the Holy Spirit…. A thing can be in the Bible, and we can have read it a thousand times, but until the Holy Spirit makes it Life to us it will be unfruitful. Hence, there is a place and need for an inward revelation of the Word of God, and this is the only true succession. Nothing can be preserved alive through generations save as every one entering its realm does so on the basis of such a personal, inward, living, and growing revelation of the truth, so that the origin and beginning is constantly repeated in experience.