What does "came by water and blood" mean? Study 1 John 5 with context, apologetic analysis, and cross-references.
Dr. Lucas D. Shallua Commentary · 1 JOHN 5 — FAITH THAT OVERCOMES, THE WITNESS TO THE SON, AND ASSURANCE OF ETERNAL LIFE
The most likely meaning is that Jesus' baptism and His death on the cross were both essential parts of His saving work as the Christ and Son of God, against the view that the divine Christ left Jesus before the crucifixion. Other readings include the water and blood that flowed from His side (John 19:34) and the sacraments of baptism and the Lord's Supper. John's emphasis is on the reality of the incarnation and the atoning death.
No. The words about the Father, the Word, and the Holy Spirit bearing witness in heaven are not found in the Greek manuscripts before the late Middle Ages. They were added in the Latin tradition and found their way into some printed Greek texts and the King James Version. The doctrine of the Trinity is firmly taught elsewhere (Matthew 28:19; 2 Corinthians 13:14), and does not rely on this passage.
Interpreters differ. The main views are final apostasy or deliberate rejection of Christ, sins that bring physical death under divine discipline, or particular heinous sins. This commentary favors the view that it is the persistent and final rejection of Christ, which shows that a person never truly belonged, in line with the rest of the letter. In any case, believers should not be afraid that a single sin might put them beyond forgiveness, since John has said that God forgives those who confess (1:9).
Yes. John writes for this purpose. The assurance is based on God's testimony, the evidence of faith, obedience, and love, and the witness of the Spirit. Assurance does not mean that believers never have doubts, but that they can have a settled confidence. This commentary holds that salvation is secure and that assurance is the privilege of every believer.
It promises that He hears and answers prayers that are according to His will. This is a safeguard against selfish prayer. It also means that unanswered requests are not necessarily a sign of failure but may reflect God's wiser will. It is consistent with the teaching that believers can pray in faith and with confidence, and rejects the idea that prayer is a technique for obtaining wealth or health on demand.
The most natural reading of the Greek is that the phrase "the true God and eternal life" refers to Jesus Christ, the closest antecedent. This would be one of the clearest affirmations of Christ's deity in the New Testament, consistent with John 1:1 and 20:28. Some interpreters take it to refer to the Father, but the grammar and context favor Jesus.
The final chapter draws the threads of the letter together. It ties faith, love, and obedience together as the marks of those who are born of God, and it gives the purpose of the letter in one of the key verses: John writes so that believers may know that they have eternal life (verse 13). The chapter addresses the doctrinal question that has been central throughout, by presenting the threefold testimony to Jesus as the Son of God, and it grounds the believer's assurance in God's own testimony. It also includes some of the more puzzling passages of the letter, including the statement about the water and the blood (verse 6) and the sin that leads to death (verses 16–17). The abrupt ending, with no formal conclusion or greeting, has often been noted. The letter closes with an appeal against idols, which recalls the importance of true worship and the dangers of false conceptions of God. John's message throughout can be summarized as follows: the Christian faith is about knowing the true God in Jesus Christ, and those who do know Him can be certain of it, because the evidence is in the three tests of belief, obedience, and love, and in the testimony of God Himself.
The statement about water and blood has a strong link with early heresies. Irenaeus, writing in the late second century, describes the teaching of Cerinthus, who held that Jesus was a mere man on whom the divine Christ descended at His baptism and from whom He departed before the crucifixion. This teaching, which separated the human Jesus from the divine Christ, was widely held among Gnostic groups. John's emphasis on the unity of the person who came by water and blood is a direct response, and it shows that the unity of the person of Christ was a point of conflict in the first century. The orthodox understanding, that Jesus is both fully God and fully man in one person, later expressed in the Council of Chalcedon in AD 451, has its roots in the apostolic witness of passages such as this. The textual note about the Comma Johanneum is an illustration of the care with which the New Testament has been transmitted and studied. The fact that textual scholars can identify and correct such later additions, by comparing thousands of manuscripts, increases confidence in the text as a whole. The vast majority of variants in the New Testament manuscripts are minor and do not affect any doctrine. The early papyri and codices, such as Codex Vaticanus and Codex Sinaiticus from the fourth century, agree on the reading without the addition. The statement of purpose in verse 13, that believers may know that they have eternal life, reflects the confidence that characterized the early church, as noted by outsiders. The early Christians' willingness to die for their faith, as seen in the martyrdom of Polycarp, John's own disciple, who declared that he had served Christ for eighty-six years and that He had done him no wrong, demonstrates the reality of the assurance that John describes.
This study preserves the hard questions, explanations, context, apologetic note, and references from Dr. Shallua's Commentary.