'Outward Appearance' in the Bible

Beware of false prophets, who to outward appearance are sheep, but inwardly they are ravenous wolves.

wo unto you, Scribes and Pharisees, hypocrites; for ye are like whited sepulchres, which to outward appearance are fine. but within are full of dead mens bones, and all sort of filth.

for it is not the Jew in outward appearance, neither is it the external mark of circumcision:

Do ye judge of things by the outward appearance? if any man is confident in himself, that he is Christ's, let him from himself conclude too, that as he is Christ's, even so are we.