'Unfading' in the Bible

and into an inheritance that is imperishable, uncorrupted, and unfading, kept in heaven for you.

but let it be [the inner beauty of] the hidden person of the heart, with the imperishable quality and unfading charm of a gentle and peaceful spirit, [one that is calm and self-controlled, not overanxious, but serene and spiritually mature] which is very precious in the sight of God.

And when the chief Shepherd appears, you will receive the unfading crown of glory.