Quran 5:62 — The Feast (Al-Ma'edah)

You see many of them readily committing evil and transgression, and eating from illicit earnings. Miserable indeed is what they do.

[5:61] When they come to you, they say, "We believe," even though they were full of disbelief when they entered, and they are full of disbelief when they leave. GOD is fully aware of everything they conceal.

[5:63] If only the rabbis and the priests enjoin them from their sinful utterances and illicit earnings! Miserable indeed is what they commit.