The Greek adjective anekleiptos means 'unfailing,' 'inexhaustible,' or 'never running out.' Formed from the alpha privative and ekleipō ('to fail, cease'), it describes a resource that cannot be exhausted. It appears once in the New Testament, in Luke 12:33.
Jesus uses anekleiptos in His teaching on earthly versus heavenly treasure: 'a treasure in heaven that will never fail (anekleiptos).' This word describes the fundamental difference between earthly and heavenly investment: earthly treasure depletes; heavenly treasure is inexhaustible.
The theological implication is radical: generous giving is not depleting resources but converting perishable wealth into imperishable wealth. This is eschatological realism — a claim about ultimate reality. The lavish generosity Jesus prescribes makes sense only if the kingdom holds inexhaustible resources.