Topical Studies for Ezra 6:13:
Darius {Forerunner Commentary}
Darius {Nave's Topical Bible}
Diligence {Forerunner Commentary}
Diligence {Nave's Topical Bible}
Diligence {Torrey's Topical Textbook}
King {Forerunner Commentary}
King {Nave's Topical Bible}
River {Nave's Topical Bible}