Given a sentence and two mentions from the text (arguments), indicate a phrase (a verb or noun phrase) that describes the relationship between the provided arguments.

Sentence: 'Jesus is the Son of God , or if you prefer , God the Son , for 'the Word became flesh and dwelt among us , ' and 'the only begotten Son , who is in the bosom of the Father , He has declared Him . '', Argument/Subject 1: 'jesus', Argument/Subject 2: 'god'
be son of