Urantia Book
163:4.8
links to Old Testament References (KJV):
Love God with all your heart:
De 13:3,
De 6:4,
De 11:1,
De 30:6,
De 10:12,
Js 23:11,
Js 22:5,
De 19:9
Love neighbor as self:
Le 19:18