1 John 5:8

The Sacrament of Baptism

• §1225Article 1 · The Sacrament of BaptismRead at vatican.va

  “The blood and water that flowed from the pierced side of the crucified Jesus are types of Baptism and the Eucharist, the sacraments of new life.” — Catechism footnote: Cf. Jn 19:34; 1 Jn 5:6-8.

"I Believe in the Holy Spirit"

• §694Article 8 · "I Believe in the Holy Spirit"Read at vatican.va

  “Thus the Spirit is also personally the living water welling up from Christ crucified” — Catechism footnote: Jn 19:34; 1 Jn 5:8.

Augustine of Hippo

• Augustine of Hippo, Homilies on the First Epistle of John Homily 1

  “1 Joann. v. 7, 8.” — the author cites it

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Leo the Great

• Leo the Great, Letters Letter 28

  “And it is the Spirit that testifieth, because the Spirit is the truth, because there are three that bear witness, the Spirit, the water and the blood, and the three are one.”” — editor's note: 1 John v. 4–8. The absence of the verse on the “Heavenly witnesses” (distinctly a western insertion) is to be noticed. On Leo’s interpretation of this…

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• Leo the Great, Sermons Sermon 34

  “…that He was truly crucified for the world’s salvation: to deny that from His side wounded by the spear flowed the blood of Redemption and the water of baptism: to deny that He was buried and raised again the third day: to deny that in sight of the disciples He was lifted above all the heights of the skies to take His…” — editor's note: Cf. Ep. xxviii. (Tome) 5, aperto per militis lanceam latere crucifixi intelligat unde sanguis et aqua fluxerit ut ecclesia Dei et lavacro rigaretur et poculo,…

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Ambrose of Milan

• Ambrose of Milan, On the Holy Spirit I.6Book I

  “And so these three witnesses are one, as John said: “The water, the blood, and the Spirit.”” — editor's note: 1 John v. 8.

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• Ambrose of Milan, On the Holy Spirit III.10Book III

  “And the Spirit beareth witness, because the Spirit is truth; for there are three witnesses, the Spirit, the water, and the blood; and these three are one.”” — editor's note: 1 John v. 6, 7, 8.

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Gregory of Nazianzus

• Gregory of Nazianzus, Orations Oration 32

  “What about John then, when in his Catholic Epistle he says that there are Three that bear witness, the Spirit and the Water and the Blood?” — editor's note: This is the famous passage of the Witnesses in 1 John v. 8. In some few later codices of the Vulgate are found the words which form verse 7 of our A.V. But…

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Clement of Alexandria

• Clement of Alexandria, The Stromata, or Miscellanies Chapter 2

  “Ver.” — the author cites it

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• Exodus 32:32

  Cited together in On the Holy Spirit III.10.

• Psalm 4:6

  Cited together in On the Holy Spirit I.6.

• Psalm 4:7

  Cited together in On the Holy Spirit I.6.

• Psalm 146:8

  Cited together in Sermons Sermon 34.

• Isaiah 43:25

  Cited together in On the Holy Spirit III.10.

• Matthew 2:10

  Cited together in Sermons Sermon 34.

• Mark 10:38

  Cited together in Catechism §1225.

• Luke 12:50

  Cited together in Catechism §1225.

• John 3:5

  Cited together in Catechism §1225 and 1 other place.

• John 3:6

  Cited together in On the Holy Spirit III.10.

• John 3:12

  Cited together in On the Holy Spirit III.10.

• John 5:6

  Cited together in On the Holy Spirit III.10.

• John 19:34

  Cited together in Catechism §1225 and 1 other place.

• Romans 3:2

  Cited together in Sermons Sermon 34.

• Ephesians 1:13

  Cited together in On the Holy Spirit I.6.

• Ephesians 1:14

  Cited together in On the Holy Spirit I.6.