# The Word

This refers to Jesus. Translate as "the Word" if possible. See how you translated this in John 1:1.

# became flesh

"became human" or "became a human being" 

# the one and only who came from the Father

"the unique Son of the Father" or "the only Son of the Father"

# 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.