"And the LORDª saidª° unto¹ Moses,ª When thou goest²°¹ to returnª° into Egypt,ª seeª° that thou doª° all¹ those wondersª beforeª Pharaoh,ª which¹ I have putª° in thine hand:ª but I¹ will hardenª°¹ his heart,ª that he shall not¹ let¹ the peopleª go.ª°" {Exd 4:21} + "And he hardenedª° Pharaoh'sª heart,ª that he hearkenedª° not¹ unto¹ them; as¹ the LORDª had said.ª° ... And the LORDª saidª° unto¹ Moses,ª Pharaoh'sª heartª [is] hardened,ª he refusethª° to let the peopleª go.ª°" {Exd 7:13-14} + "But my peopleª would not¹ hearkenª° to my voice;ª and Israelª wouldª° none¹ of me. ... So I gave them upª° unto their own hearts'ª lust:ª [and] they walked²°¹ in their own counsels.ª" {Psa 81:11-12} + "Andª the¹ fifthª angelª poured outª° his²¹ vialª uponª the¹ seatª of the¹ beast;ª andª his²¹ kingdomª wasª° full of darkness;ª° andª they gnawedª° their²¹ tonguesª forª pain,ª ... Andª blasphemedª° the¹ Godª of heavenª because ofª their²¹ painsª andªª their²¹ sores,ª andª repentedª° notª ofª their²¹ deeds.ª" {Rev 16:10-11}; Hardness of heart is a figurative expression, denoting that insensibility of mind upon which neither judgments nor mercies make any abiding impressions; but the conscience being stupefied, the obdurate rebel persists in determined disobedience.