Question
Is Yom Kippur the holiest day of the year?
Answer
It doesn’t say in the Torah that Yom Kippur is the holiest day of the year. In fact, the Bible doesn’t refer to any day as “holy” except for Rosh Ha-Shanah, which is called “holy” in Nehemiah 8:9-11. But Yom Kippur is the unique day that the Torah sets aside for atonement for our sins (Lev. 16:30,34). We can also say that Yom Kippur was the holiest day as far as the Temple service was concerned, because only on that day was the High Priest allowed to enter the Holy of Holies.