He who believes in the Son of God has the testimony in himself. He who doesn’t believe God has made him a liar, because he has not believed in the testimony that God has given concerning his Son.
ExplanationCommentary
Verse 10. He that believeth not the Son, maketh him (God) a liar, by refusing to believe the testimonies given by the three divine Persons, that Jesus was the Messias and the true Son of God, by whom eternal life is obtained and promised to all that comply with his doctrine. In him we have also this lively confidence, that we shall obtain whatever we ask, according to his will, when we ask what is for our good with perseverance and in the manner we ought. And this we know and have experience of, by having obtained the petitions that we have made. Witham.