And we know] Or, But we know; as v. 17.
that the Son of God is come] See chap. 4. 2.
and hath given us understanding] Jeremiah 24:7.
him that is true] The true God, v. 19. as followeth in this verse, opposed to idols, v. 21. Or, Christ, spoken of before in this verse.
even in his Son] Or, and in his Son. We are in the Father, and in the Son, chap. 2. 24.
this is the true God] Christ is the true God, John 17:3. Titus 2:13. and Titus 3:4. Jude v. 25.
and eternall life] The authour of it, v. 11. Chap. 1. 2. Joh. 6, 68, 69.