'Appearance' in the Bible

for we walk by faith, not by sight [living our lives in a manner consistent with our confident belief in God’s promises]—

For we commend not ourselves again unto you, but give you occasion to glory on our behalf, that ye may have somewhat to answer them which glory in appearance, and not in heart.

But I myself, Paul, entreat you by the meekness and gentleness of the Christ, who, as to appearance, when present am mean among you, but absent am bold towards you;

Do ye look on things after the outward appearance? If any man trust to himself that he is Christ's, let him of himself think this again, that, as he is Christ's, even so are we Christ's.