Υἱὸς ἐπτὰ ἐτῶν Ἰωὰς ἐν τῷ βασιλεύειν αὐτόν.

1. Υἱὸς
   Son
2. ἐπτὰ
   seven
3. ἐτῶν
   years
4. Ἰωὰς
   Joash
5. ἐν
   in
6. τῷ
   the
   to the
7. βασιλεύειν
   to reign
8. αὐτόν
   him
9.  
   .
    

Joash was seven years old when he began to reign.