|Noah Webster's Dictionary|
1. (a.) Hardened; indurated.
2. (a.) Hardened in mind; insensible; unfeeling; unsusceptible.
Callous (6 Occurrences)
Matthew 13:15 for this people's heart has grown callous, their ears are dull of hearing, they have closed their eyes; or else perhaps they might perceive with their eyes, hear with their ears, understand with their heart, and should turn again; and I would heal them.' (WEB NIV)
John 12:40 "He has blinded their eyes and made their minds callous, lest they should see with their eyes and perceive with their minds, and should turn, and I should heal them." (WEY)
Acts 28:27 For this people's heart has grown callous. Their ears are dull of hearing. Their eyes they have closed. Lest they should see with their eyes, hear with their ears, understand with their heart, and would turn again, and I would heal them.' (WEB WEY NIV)
Ephesians 4:19 who having become callous gave themselves up to lust, to work all uncleanness with greediness. (WEB NAS RSV)
Psalms 17:10 They close up their callous hearts. With their mouth they speak proudly. (WEB NIV)
Psalms 119:70 Their heart is as callous as the fat, but I delight in your law. (WEB NIV)