The Greek word sákkos, represented by G4526, is of Hebrew origin and refers to "sack"-cloth. This term denotes mohair, both as a material and as the garments made from it, which are worn as a sign of grief. It appears 4 times across 4 unique verses in the Bible.
In the biblical narrative, G4526 is used primarily as a powerful symbol of mourning, repentance, and solemnity. Jesus uses it to illustrate a potential response of deep repentance, stating that the cities of Tyre and Sidon would have repented in sackcloth and ashes if they had witnessed his mighty works (Matthew 11:21; Luke 10:13). In the book of Revelation, it describes the somber clothing of the two witnesses during their prophecy Revelation 11:3 and is also used in a cosmic metaphor where the sun becomes "black as sackcloth of hair" during the opening of the sixth seal Revelation 6:12.
Several related words provide context for the use of sackcloth:
- G3340 metanoéō (to think differently or afterwards, i.e. reconsider (morally, feel compunction):--repent): This word is directly linked to the purpose of wearing sackcloth, which serves as the outward sign of the inner repentance Jesus describes Matthew 11:21.
- G4700 spodós (ashes): This term for ashes is consistently paired with sackcloth to signify the deepest form of humility and grief before God Luke 10:13.
- G5155 tríchinos (hairy, i.e. made of hair (mohair):--of hair): This word clarifies the rough, coarse nature of the material, emphasizing its association with discomfort and mourning. It is used to describe the sackcloth in the vision of the sun turning black Revelation 6:12.
The theological weight of G4526 is found in its consistent use as a visual representation of a profound spiritual state.
- Sign of Repentance: Wearing sackcloth is an external act that demonstrates an internal state of contrition and a turning away from sin. It is the physical posture of one who sits in ashes and repents Luke 10:13.
- Emblem of Solemnity: The two witnesses are clothed in sackcloth, signifying the gravity of their prophetic message and the state of mourning appropriate for the times they speak into Revelation 11:3.
- Symbol of Judgment: The word is used metaphorically to convey divine judgment, where the darkening of the sun is compared to sackcloth of hair, linking the imagery of grief to a cataclysmic, world-altering event Revelation 6:12.
In summary, G4526 is far more than a simple reference to a type of fabric. It is a key biblical symbol that communicates deep sorrow, profound repentance, and the gravity of divine judgment. From a personal act of turning back to God to a sign of cosmic upheaval, sákkos provides a powerful and visceral image of humanity's response to the sacred.