Leviticus 16:31
It shall be a sabbath of rest unto you, and ye shall afflict your souls, by a statute for ever.
Cross-reference
Leviticus 23:32
Parallel
Leviticus 23:32 repeats the command for a Sabbath of solemn rest and affliction on the Day of Atonement, identical wording.
Leviticus 23:27
Historical context
Leviticus 23:27 identifies the tenth day of the seventh month as the Day of Atonement, the same holy day commanded here.
Isaiah 58:3
Contrast
Isaiah 58:3 critiques hypocritical fasting, referencing the same practice of humbling oneself but contrasting outward observance with sincere affliction.
Psalm 35:13
Allusion
Psalm 35:13 uses the same Hebrew root for self-affliction, depicting David's personal fasting and humility, echoing the required affliction on Yom Kippur.
Daniel 10:12
Allusion
Daniel 10:12 describes Daniel humbling himself (same concept of affliction) in prayer, illustrating a personal application of self-abasement before God.