G4643 σκληρότης σκληρότης (sklērótēs), Strong’s G4643: callousness, i.e. (figuratively) stubbornness KJV: hardness. Occurs 5 times. Source: https://besorah.bible/word/G4643 — Besorah, the whole Bible in Hebrew, Greek and English. Texts and licences: https://besorah.bible/about/credits.html sklērótēs — callousness, i.e. (figuratively) stubbornness KJV: hardness Derived from σκληρός sklērós (https://besorah.bible/word/G4642) (dry, i.e. hard or tough) Occurs 5 times. Where it occurs - Romans 2:5 (https://besorah.bible/besorah/romans/2?v=5) — But according to your hardness and unrepentant heart you are treasuring up for yourself wrath in the day of wrath…