Topical Studies for Philippians 1:9:
Knowledge {Forerunner Commentary}
Knowledge {Nave's Topical Bible}
Love {Forerunner Commentary}
Love {Nave's Topical Bible}
Prayer {Forerunner Commentary}
Prayer {Nave's Topical Bible}
Prayer {Torrey's Topical Textbook}
Discernment {Forerunner Commentary}