Topical Studies for Proverbs 21:20:
Man {Forerunner Commentary}
Man {Nave's Topical Bible}
Man {Torrey's Topical Textbook}
Oil {Forerunner Commentary}
Oil {Nave's Topical Bible}
Oil {Torrey's Topical Textbook}
Treasure {Forerunner Commentary}
Treasure {Nave's Topical Bible}
Wise {Forerunner Commentary}