I John
Purpose
First John is not so much a letter as a pastoral meditation written to reassure a shaken community in the face of false teachers who had left them, denying that Jesus Christ had come "in the flesh" and claiming a spiritual knowledge that freed them from moral obligation. Against them, the elder writes to restore the foundations of Christian assurance: that which was from the beginning, which "we have heard… and touched" — the eternal life that was with the Father and appeared in Jesus Christ — is the basis of fellowship with the Father and the Son, and of fellowship with one another. The letter sets a series of piercing tests by which believers may "know" they have eternal life: walking in the light, confessing sin, keeping God's commandments, loving the brother, and believing in the Son. Light and darkness, truth and lie, love and hate stand in stark contrast, yet woven through is the tender assurance that "if anyone does sin, we have an advocate with the Father, Jesus Christ the righteous," and the great center of the letter: "God is love," and "we love because he first loved us," his love perfected in those who keep his word and love their brother.
Author
Anonymous in the text; traditionally John the apostle, "the elder"
Time Period
Written c. 85-95 AD, likely from Ephesus
Key Themes
- Light and truth
- God is love and love of the brother
- Assurance of eternal life
- The incarnation against false teaching
- Confession and advocacy
Outline
The word of life and walking in the light (ch. 1): fellowship grounded in the incarnate Word, confession of sin, and the cleansing blood of Jesus. Tests of truth and love (ch. 2–3): keeping the commandments, the new and old commandment to love, the antichrists who deny the Son, the children of God and the children of the devil, and love in deed and truth. Discerning the spirits and the primacy of love (ch. 4): testing the spirits, God's love shown in the Son, and perfect love casting out fear. Faith, witness, and eternal life (ch. 5): faith overcoming the world, the threefold witness, the assurance of eternal life, prayer for the sinning brother, and the closing warning against idols.