irrepealable

The morally good can not be something "contingent," but must be absolute, irrepealable and irreversible even by God.

Character stands as the irrepealable condition of reaching man's proper and true happiness.

No laws of nature are so irrepealable as that law which binds guilt and misery.

They were two castes, separate and standing apart as by the irrepealable law of God.

The Customs, they averred, were of themselves illegal, as clashing with higher irrepealable laws.