Charity, by Emanuel Swedenborg, [1766], tr. by John Whitehead [1914]
He who does not make distinctions in regard to the neighbour in accordance with the quality of the good and truth with him may be deceived a thousand times; his charity becomes confused and at length what is not charity. A devil-man may exclaim, "I am your neighbour: do good to me!" and if you do good to him, he may kill you or others.