"Some persons think that they have to look like a hedgehog to be pious"

This quote by Billy Sunday is a funny method of expressing the idea that one does not need to look a certain way to be pious. Sunday is suggesting that some individuals believe that they require to seem extremely serious and solemn in order to be viewed as pious. However, Sunday is implying that this is not the case. Rather, he is suggesting that piety is something that originates from within and is not necessarily shown in one's outside look. He is likewise suggesting that one does not need to be extremely major or solemn in order to be pious. To put it simply, one can be pious without looking like a hedgehog.