en_tn_condensed/2jn/01/03.md

Father ... Son

These are important titles that describe the relationship between God and Jesus.

This refers to God the Father. It is best to translate "Father" with the same word that your language uses to refer to a human father. This refers to Jesus, the Son of God. It is best to translate "Son" with the same word that your language uses to refer to a human son.

in truth and love

The word "truth" describes "love." Possibly the phrase means "in true love."