John 1:49

ἀπεκρίθη αὐτῷ Ναθαναήλ· ῥαββί, σὺ εἶ ὁ υἱὸς τοῦ θεοῦ, σὺ βασιλεὺς εἶ τοῦ Ἰσραήλ.

Nathaniel answered him: Rabbi you are the son of God, you are the king of Israel.


 * ἀπεκρίθη - aorist middle/passive 3rd person singular, he answered. Verbs of communication can be thought of as reciprocal and the actor is also "affected" by the action, hence middle.
 * ῥαββί - one of the few times ῥ is seen with a breathing mark.
 * Colwell used this verse as an illustration of his Colwell's rule. The last two clauses are parallel and yet have contrasting structures:
 * τοῦ θεοῦ is the first predicate nominative, it has the article and so is definite, and it comes after the linking verb.
 * βασιλεὺς is the second predicate nominative, it does not have the article but by parallel with the first clause, should be definite. It comes before the linking verb.