Greek

  • harden - G4645 - sklérunóG4645-sklérunó
    • Strong’s Concordance
      • to hraden, make hard, make stubborn
    • HELPS Word-studies
      • Cognate: 4645 sklērýnō – properly, to harden; become inflexible (literally “dried out”); (figuratively) obstinately stubborn, resisting what God says is right. See 4642 (sklēros).

Used Six Times in the New Testament

Acts-19v9

Acts 19:9

9 But when some of them stubbornly refused to believe and publicly maligned the Way, Paul took his disciples and left the synagogue to conduct daily discussions in the lecture hall of Tyrannus.

Romans-9v18

Romans 9:18

Therefore God has mercy on whom He wants to have mercy, and He hardens whom He wants to harden.

Hebrews-3v8

Hebrews 3:8

do not harden your hearts, as you did in the rebellion, in the day of testing in the wilderness,

Hebrews-3v13

Hebrews 3:13

But exhort one another daily, as long as it is called today, so that none of you may be hardened by sin’s deceitfulness.

Hebrews-3v15

Hebrews 3:15

As it has been said: “Today, if you hear His voice, do not harden your hearts, as you did in the rebellion.”

Hebrews-4v7

Hebrews 4:7

God again designated a certain day as “Today, when a long time later He spoke through David as was just stated: “Today, if you hear His voice, do not harden your hearts.”