σάκκοςsákkos

"sack"-cloth, i.e. mohair (the material or garments made of it, worn as a sign of grief)

Greek (New Testament) · G4526

Meanings

1. a coarse cloth, sackcloth, usually made of hair: Revelation 6:12.

2. Anything made of sackcloth

(a) a sack (Genesis 42:25, and elsewhere)

(b) a garment of sackcloth, expressive of mourning or penitence: Matthew 11:21, Luke 10:13, Revelation 11:3.

Same root

Where it appears

Appears 4 times in the Bible.

  • Matthew 11:21 “What sorrow awaits you, Korazin and Bethsaida! For if the miracles I did in you had been done in wicked Tyre and Sidon, their people would have repented of their sins long ago, clothing themselves in burlap and throwing ashes on their heads to show their remorse.
  • Luke 10:13 “What sorrow awaits you, Korazin and Bethsaida! For if the miracles I did in you had been done in wicked Tyre and Sidon, their people would have repented of their sins long ago, clothing themselves in burlap and throwing ashes on their heads to show their remorse.
  • Revelation 6:12 I watched as the Lamb broke the sixth seal, and there was a great earthquake. The sun became as dark as black cloth, and the moon became as red as blood.
  • Revelation 11:3 And I will give power to my two witnesses, and they will be clothed in burlap and will prophesy during those 1,260 days.”

Source: G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), public domain.