en_tn/1jn/05/09.md

If we receive the testimony of men

The idiom to "receive the testimony" means to believe what another person testifies concerning something that he has seen. The abstract noun "testimony" can be translated with a verbal phrase. Alternate translation: "If we believe what men testify" or "If we believe what men say about what they have seen" (See: rc://en/ta/man/jit/figs-idiom and rc://en/ta/man/jit/figs-abstractnouns)

the testimony of God is greater

the testimony of God is more important and more reliable

Son

This is an important title for Jesus, the Son of God. (See: rc://en/ta/man/jit/guidelines-sonofgodprinciples)