What was the significance of the Day of Atonement in ancient Israel?
“This shall be a statute forever for you: In the seventh month, on the tenth day of the month, you shall afflict your souls [by fasting], and do no work at all, whether a native of your own country or a stranger who dwells among you. For on that day the priest shall make atonement for you, to cleanse you, that you may be clean from all your sins before the LORD” (Leviticus 16:29-30). On the Day of Atonement each year the nation of ancient Israel was figuratively cleansed from its sins. This figurative cleansing was only a type of a spiritual cleansing that will occur first for the people of Israel, and then for the rest of the world, after Christ returns.