'Unclean' in the Bible

So be sure that you don't drink wine or anything intoxicating, and don't eat anything unclean

He told me, "Surprise! you're going to conceive and give birth to a son!' and as for you, "Be sure that you don't drink wine or anything intoxicating, and don't eat anything unclean,' "because the young man will be a Nazirite dedicated to God from inside the womb' until the day he dies."

She must not consume anything extracted from grape vines, including wine or anything intoxicating, and she must not eat anything unclean, doing everything that I commissioned her to do."