# the truth

Possible meanings of this metaphor are 1) "the true person" or 2) "the one who speaks true words about God." 

# the life

"the one who can make people alive" 

# no one comes to the Father except through me

"everyone comes to the Father only through me" or "the only way anyone comes to the Father is through me"

# Father

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.