Leviticus Chapter 23, Verse 28
From BibleWiki
28: And ye shall do no work in that same day: for it is a day of
atonement, to make an atonement for you before the LORD your God.
28: You shall do no servile work in the time of this day: because it
is a day of propitiation, that the Lord your God may be merciful unto
you.
28: Ye shall do no work on this self-same day: for this is a day of atonement for you, to make atonement for you before the Lord your God.
Leviticus Chapter 23, Verse 28/commentary

