Photo: Quino AI. Perfection (Matthew 5:48) taught by the Lord Jesus is spiritual and its fruit reaches eternal life. Its contents can be read in the first reading and the gospels. "Be holy, for I, the Lord your God, am holy." (Leviticus 19:2). Holiness is seen in the attitude of not hating and not taking revenge and by loving others (Leviticus 19: 17-18).