If I were to boil down the message of this epistle into one sentence it would be this. Fellowship with God is the essence of eternal life.
Both the Gospel of John and the First Epistle of John deal with eternal life. John wrote his Gospel so his readers might believe that Jesus is the Christ, and that believing they might have life through His name (John 20:31). John wrote this epistle to Christians so we might enter into the fullness of the eternal life that we possess (1 John 1:3; John 10:10). However the subject of this letter is not eternal life but fellowship with God. Fellowship with God is the essence of eternal life (1:3-4; John 17:3).
John evidently wrote this epistle about 90-95 A.D. from Ephesus.
This epistle grew out of Jesus' Upper Room Discourse (John 14-17). Similarly James' epistle grew out of Jesus' Sermon on the Mount, and the Book of Revelation grew out of the Olivet Discourse (Matt. 24-25). In the Upper Room Discourse, Jesus explained to the apostles their relationship to God as it would exist after He sent the Holy Spirit to dwell in them (John 14:16-17). John expounded that revelation in this letter.
There are several terms in this epistle that John used as synonyms: fellowship with God, knowing God, and abiding in God. These terms all describe the experience of Christians. They all describe our relationship with God as more or less intimate.
Our relationships with people vary. They are more or less intimate.
Fellowship with God is also a matter of greater or lesser intimacy. When we speak of being "in fellowship"or "out of fellowship,"we are oversimplifying our relationship to God.
John's purpose in writing was to motivate his readers to cultivate greater intimacy with God. The greater the intimacy, the greater our "fellowship,"the better we "know"God experientially, and the closer we "abide"in Him (cf. John 14:21-24). The greater our intimacy with God the more we will experience the life that is eternal. All Christians possess eternal life, but all do not experience that life as God intended us to enjoy it (John 10:10). Similarly all living human beings have life, but not all live an abundant life.
This letter reveals two things about the life of fellowship.
First, it reveals the resources of this life. There are two resources.
The first is objective. God has provided a pattern for the life of fellowship. The pattern is Jesus Christ. In Christ we have personified two qualities that are characteristics of God that should also characterize us as the children of God.
The first of these is light. Jesus Christ constantly walked in the light of God's holiness (1:5-6; 2:6). He never hid from God. He also conformed to the light of God's will perfectly. He was submissive, sinless, clean, and consecrated.
The second of these resources is love. Jesus also constantly manifested the love of God (4:10). In His attitudes and activities He always demonstrated perfect love. His words and His deeds were a revelation of God's love. Jesus put others before Himself. He was selfless as well as holy.
The second resource of the life of fellowship is subjective. God has not only provided a pattern for the life of fellowship, He has also provided the power. Jesus Christ is not only an external pattern for us to imitate. More helpfully He is an internal power whom God has placed within us who is at work in our lives. With eternal life we get Jesus (5:11-12). With Him come two things.
First, we get light. We see spiritual things that we never saw before (2:20). We see how we ought to walk (2:27). We become sensitive to sin.
Second, we get love. We see the need of other people who are groping in darkness, and we desire to reach out to them in service and to bring them into the light (4:7). As soon as we share God's life we begin to love with God's love. We can quench love, but every person who has eternal life has love in him or her.
To review, this letter reveals two things about the life of fellowship: first the resources of this life, which are an external pattern and internal power. Both of these come from Jesus Christ.
Second, this letter reveals the values of the realization of this life. These are two also.
First, there is value for us. This value is that we realize life as God intended people to live it. We can experience life as God meant it to be when He first made man. We achieve our potential as human beings to the degree to which we walk in fellowship with God (i.e., abide in Him). Our intimacy with God perfects our personalities.
Second, there is also value for God. God enjoys fellowship with man. God's purpose in creation and redemption was to have fellowship with man. God finds in every person who walks with Him in fellowship a person through whom He can manifest Himself, an instrument through whom He can accomplish His purposes. The abiding believer reveals God to those around him or her.
John also called his readers to fulfill our responsibilities in the life of fellowship.
Regarding the light we have two responsibilities.
First, we must obey the light (1:7). That means responding positively to the knowledge of God's will that we gain. We can become callused to the truth. This is a special danger in seminary. Cultivate your relationship with God daily. We all need to keep weeding the gardens of our spiritual lives.
Second, we must seek the light (1:9). We need to forsake the darkness of sin and keep walking in the light. The circle of God's light may move. We may gain new understanding of His will. When that happens, we need to move into that light in obedience.
Regarding love we also have two responsibilities.
First, we must yield to its impulse. We can destroy our capacity to love by not expressing love when God moves us to do so. We can lose our passion for the lost by resisting the Holy Spirit's promptings to reach out in love. We need to be ready to sacrifice rather than to put self first. However if we yield ourselves to the impulse of love to serve others, our love will deepen and intensify. Do not quench the Spirit if He is prompting you to reach out in love.
Second, we must also guard love's purity. We need to watch out for false charity. True love never sacrifices principle. God never loved at the expense of light. Love never justifies sin.
In conclusion, notice two applications of the message of this epistle, one to the individual and one to the church.
First, let me make one application to the individual. We can test whether we are living in fellowship with God easily. Check the light and the love in our lives. Is the light of holiness shining clearly, or are we walking in darkness? Is our love still burning brightly, or has our life deteriorated to the level of only learning? Learning is only one means to the end of living, living in intimate fellowship with God. What do you want people to remember you for, your knowledge or your love?
Second, let me make one application to the church. We need to keep our priorities in line with God's. Intimacy is His goal for us. God desires a few committed disciples rather than a multitude of compromising disciples. A pure church is more important than a large church. Do not draw back from urging people to walk in the light and to walk in love to increase the size of your congregation. Make as broad an appeal as possible without pulling your punches in ministry. I'm referring here to the church's ministry of equipping the saints. In presenting the gospel, we should make as broad an appeal as possible.
