If we receive the witness of men, &c.— "Now if, according to what is written in the law of God, we readily admit of, and depend upon, the testimony of two or three credible witnesses among men (Deuteronomy 17:6; Deuteronomy 19:15 comp. Matthew 18:16. 2 Corinthians 13:1.Hebrews 10:28.), and they are judged sufficient to determine all controversies about human affairs in any court of judicature; we may be much more sure that the infallible testimony of God the Father, Son, and Spirit in heaven, as well as of those three other witnesses, by divine appointment, on earth, ought to be unquestionably and absolutely depended upon: for this is the testimony of that God who cannot lie, and who in these various ways has given it concerning his only-begotten and eternal Son, with regard to his being the true Messiah."
Related Commentaries of 1 John 5:9
1 John 5:9
9 If we receive the witness of men, the witness of God is greater: for this is the witness of God which he hath testified of his Son.