en_tn/2jn/01/09.md

Whoever goes on ahead

This refers to a person who claims to know more about God and truth than everyone else. Alternate translation: "Whoever claims to know more about God."

does not remain in the teaching of Christ

"does not continue to trust what Christ taught"

does not have God

"does not belong to God"

comes to you

The word "you" is plural.

your house

The word "your" is plural.

participates in his evil deeds

"shares with him in his evil deeds" or "helps him in his evil deeds"