Man was created good and upright; for God said, "Let us make man in our own image, after our likeness." However, man by voluntary transgression fell and thereby incurred not only physical death but also spiritual death, which is separation from God.
Gen 1:26, 27, Gen 2:17, Gen 3:6 Romans 5:12-19
Unseen Realm by Michael Heiser
Fall in the Garden, Spiritual rebellion in Gen 6, Tower of Babel