The Urantia Book Study Edition
Urantia Book 121:7.5 links to Old Testament References (KJV):
New spirit, live in men's hearts:
Jl 2:28,
Ek 36:26,
Ek 18:31,
Ek 11:19
Create clean heart, new spirit:
Ps 51:10
Law written in men's hearts:
Je 32:40,
Je 31:33