The "fullness of Christ" is a concept that can be interpreted in several aspects...
The "fullness of Christ" is a concept that can be interpreted in several aspects.
1) The fullness of the presence of our Lord Jesus Christ. This is, in fact, the reason why Christians gather in the Church, as the Lord Himself said about it: "For where two or three are gathered together in My name, I am there in the midst of them" (Matthew 18:20). Furthermore, the Lord says about this: "If anyone loves Me, he will keep My word; and My Father will love him, and We will come to him and make Our home with him" (John 14:24). The Greek word can be translated as a) dwelling, b) rest, c) abiding. It is speaking of the presence of God in a person's life.
2) The Apostle Paul in the Epistle to the Ephesians says: "till we all come to the unity of the faith and of the knowledge of the Son of God, to a perfect man, to the measure of the stature of the fullness of Christ" (Ephesians 4:13). The last words can also be translated as "to the measure of the age of the fullness of Christ." The Apostle is saying that the life of a Christian is directed towards being able, following the apostle himself, to say: "it is no longer I who live, but Christ lives in me" (Galatians 2:20). The apostle also says about this: "Imitate me, just as I also imitate Christ" (1 Corinthians 11:1).
The fullness of Christ, undoubtedly, cannot be adequately described in words; however, these two aspects allow us to identify the main point.
As for the question of how to enter into this fullness, the answer follows from what has been said above. The "gates" through which we can enter the fullness of Christ is the Church. In it, the possibility of prayerful communion with Christ and participation in the sacraments of the Church is revealed to us, where He Himself comes into our lives according to His promise. Also, a fundamental condition for entering into the fullness of Christ is living according to His commandments. But most importantly: since it would be naive to try to force Him into the fullness of communion with us, we must first of all ask this of Him Himself. Many Christians resort, in addition to this, to the prayers of other members of the Church, first and foremost the Most Pure Mother of God.
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3:8 Unto me, who am less than the least of all saints, is this grace given - Here are the noblest strains of eloquence to paint the exceeding low opinion the apostle had of himself, and the fulness of unfathomable blessings which are treasured up in Christ.
3:9 What is the fellowship of the mystery - What those mysterious blessings are whereof all believers jointly partake. Which was, in a great measure, hidden from eternity by God, who, to make way for the free exercise of his love, created all things - This is the foundation of all his dispensations.
3:10 That the manifold wisdom of God might be made known by the church - By what is done in the church, which is the theatre of the divine wisdom.
3:12 By whom we have free access - Such as those petitioners have, who are introduced to the royal presence by some distinguished favourite.And boldness - Unrestrained liberty of speech, such as children use in addressing an indulgent father, when, without fear of offending, they disclose all their wants, and make known all their requests.
3:13 The not fainting is your glory.
3:15 Of whom - The Father. The whole family of angels in heaven, saints in paradise, and believers on earth is named. Being the "children of God," (a more honourable title than "children of Abraham,")and depending on him as the Father of the family.
3:16 The riches of his glory - The immense fulness of his glorious wisdom, power, and mercy. The inner man - The soul.
3:17 Dwell - That is, constantly and sensibly abide.
3:18 That being rooted and grounded - That is, deeply fixed and firmly established, in love. Ye may comprehend - So far as an human mind is capable. What is the breadth of the love of Christ - Embracing all mankind. And length - From everlasting to everlasting.And depth - Not to be fathomed by any creature. And height - Not to be reached by any enemy.
3:19 And to know - But the apostle corrects himself, and immediately observes, it cannot be fully known. This only we know, that the love of Christ surpasses all knowledge. That ye may be filled - Which is the sum of all. With all the fulness of God - With all his light, love, wisdom, holiness, power, and glory. A perfection far beyond a bare freedom from sin.
3:20 Now to him - This doxology is admirably adapted to strengthenour faith, that we may not stagger at the great things the apostle has been praying for, as if they were too much for God to give, or for us to expect from him. That is able - Here is a most beautiful gradation.When he has given us exceeding, yea, abundant blessings, still we may ask for more. And he is able to do it. But we may think of more than we have asked. He is able to do this also. Yea, and above all this.Above all we ask - Above all we can think. Nay, exceedingly, abundantly above all that we can either ask or think.
3:21 In the church - On earth and in heaven.