2 Corinthians 4:16

16ThereforeΔιὸnotοὐκwe lose heartἐγκακοῦμεν,butἀλλ’ifεἰindeedκαὶtheὁoutwardἔξωof usἡμῶνmanἄνθρωποςis being brought to decayδιαφθείρεται,yetἀλλ’theὁinnerἔσωof usἡμῶνis being renewedἀνακαινοῦταιdayἡμέρᾳandκαὶdayἡμέρᾳ.

Therefore we do not grow fainthearted; but if also our outer man decays, yet our inner one is renewed day and day.