1 John 5:10

Whoever believes in the Son of God has this testimony within him; whoever does not believe God has made Him out to be a liar, because he has not believed in the testimony that God has given about His Son.

Berean Standard Bible
Other translations

King James Version

He that believeth on the Son of God hath the witness in himself: he that believeth not God hath made him a liar; because he believeth not the record that God gave of his Son.

World English Bible

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.

American Standard Version

He that believeth on the Son of God hath the witness in him: he that believeth not God hath made him a liar; because he hath not believed in the witness that God hath borne concerning his Son.

Geneva Bible 1599

He that beleeueth in that Sonne of God, hath the witnes in himselfe: he that beleeueth not God, hath made him a lyar, because he beleeued not ye record, that God witnessed of that his Sonne.

Darby Translation

He that believes on the Son of God has the witness in himself; he that does not believe God has made him a liar, because he has not believed in the witness which God has witnessed concerning his Son.

Young's Literal Translation

He who is believing in the Son of God, hath the testimony in himself; he who is not believing God, a liar hath made Him, because he hath not believed in the testimony that God hath testified concerning His Son;

Bible in Basic English

He who has faith in the Son of God has the witness in himself: he who has not faith in God makes him false, because he has not faith in the witness which God has given about his Son.

In context

9Even if we accept human testimony, the testimony of God is greater. For this is the testimony that God has given about His Son.

11And this is that testimony: God has given us eternal life, and this life is in His Son.

Read 1 John 5