Abide pt1
In other words, John and other eyewitnesses saw this deity, who has life in himself from eternity, incarnated in time/space/history
The object of eyewitness proclamation is one and the same: “That which was from the beginning,” who is “the Word of life,” is also “the eternal life, which was with the Father.” The first phrase emphasizes Jesus’ deity, while the second phrase focuses on Jesus’ revelation of eternal life. Thus, the beginning and the conclusion of 1 John (see 5:20) assert the same fact: the eternal Son of God, who is the true God and eternal life, has been revealed in history
it is through the proclamation of the incarnate Word of life that John envisions the accomplishment of his purpose of bringing his readers to fellowship with him and other eyewitnesses. As Eichler observes, “[To] ‘have fellowship’ with one another and with Christ (1 Jn. 1:6f.) is to ‘know’ him (1 Jn. 2:3) and to ‘abide’ in him (v. 6).” This fellowship’s basis, then, is in the apostolic preaching of the historical Jesus as well as the readers’ response of faith in the subject of that proclamation
In summary, faith in the incarnate Son of God, Jesus the Christ, transfers one from the realm of death to life, from darkness to light, and this life that one now possesses through faith makes its presence known by means of the love that a Christian has for his fellow Christians. Fellowship with the Father and his Son, then, is essentially the same thing as having eternal life
Fellowship” further denotes the “oneness in community” with other believers, with the Father, and with his Son that results from faith in this Son. Such fellowship for John is, in fact, inseparable from having eternal life: to have eternal life is to have fellowship with the apostolic witnesses who have testified concerning the Word of life. Fellowship with these witnesses is, in turn, nothing less than fellowship “with the Father and with his Son, Jesus the Christ
If we claim that we have fellowship with God and yet do not live in the eternal life revealed by Jesus (implicitly by faith in this Jesus), we are lying and not doing the truth (i.e., we are not obeying God’s word)
The evidence of true mutual fellowship with God is one’s living in the fullness of life revealed by Jesus. While those without Christ can only make false claims about having fellowship with God (1:6), Christians actually have fellowship with God and God with them through Jesus, who is the only Mediator between God and human beings
the heretics argued that the condition for fellowship with the Father is sinlessness. Therefore they claimed to be sinless. Yet in this very claim they rejected God’s word (1:10; i.e., the truth God has revealed in Jesus, 1:8), deceived themselves, and made God out to be a liar.131 Sinlessness is theirs by virtue of life in Christ alone. It cannot be located merely within themselves.
John’s point is that the true condition for fellowship is the confession of our sins. Yet John does not dispute their premise of the need for sinlessness. “When someone acknowledges and avows his fault … honestly [neither hiding nor denying his sins], he experiences God’s faithfulness and righteousness in the forgiveness of sins.” By virtue of the cleansing effect of Jesus’ atoning death, believers’ sins are forgiven.134 In effect, they are sinless in God’s sight (though not in themselves) and fit for fellowship with him.
Because God has sent his Son as Savior of the world (cf. 4:14), to those who confess their sins by trusting in this Jesus whom God has revealed (taking 1:7 and 1:9 together), God is faithful and righteous to forgive them their sins and cleanse them from all unrighteousness.137 God is able and righteous in forgiving because these sinners will have confessed their sins and trusted in God’s revelation of eternal life in Jesus his Son, whose death is the basis for forgiveness.
