Leviticus 16:31 KJV
It shall be a sabbath of rest unto you, and ye shall afflict your souls, by a statute for ever.
Leviticus 16:31, King James Version
In context
30 For on that day shall the priest make an atonement for you, to cleanse you, that ye may be clean from all your sins before the Lord.
31 It shall be a sabbath of rest unto you, and ye shall afflict your souls, by a statute for ever.
32 And the priest, whom he shall anoint, and whom he shall consecrate to minister in the priest’s office in his father’s stead, shall make the atonement, and shall put on the linen clothes, even the holy garments: