Topical Studies for Psalms 40:8:
God {Forerunner Commentary}
God {Nave's Topical Bible}
God {Torrey's Topical Textbook}
Heart {Forerunner Commentary}
Heart {Nave's Topical Bible}
Law {Forerunner Commentary}
Law {Nave's Topical Bible}
Will {Forerunner Commentary}
Will {Nave's Topical Bible}
Delight {Forerunner Commentary}