atavistic |ˌatəˈvistik|
adjective
relating to or characterized by reversion to something ancient or ancestral: atavistic fears and instincts.

Family traits of the family of man —
the ancient need to rely on props,
on substitutes, rather than on He who can.
I own my character defects as completely
as the Breedlove cowlick, the bent to giggling,
intelligence, a proclivity to obstinacy,
an amnesiac approach to names…
But I also claim the family of God,
an ability to accept grace, to serve the King,
to be a tool of use in an eternal plan.