|Noah Webster's Dictionary|
1. (n.) The quality or state of being hard, literally or figuratively.
2. (n.) The cohesion of the particles on the surface of a body, determined by its capacity to scratch another, or be itself scratched;-measured among minerals on a scale of which diamond and talc form the extremes.
3. (n.) The peculiar quality exhibited by water which has mineral salts dissolved in it. Such water forms an insoluble compound with soap, and is hence unfit for washing purposes.
Int. Standard Bible Encyclopedia
Hardness (11 Occurrences)
Matthew 19:8 He said to them, "Moses, because of the hardness of your hearts, allowed you to divorce your wives, but from the beginning it has not been so. (WEB KJV WEY ASV WBS NAS RSV)
Mark 3:5 And when he had looked round about on them with anger, being grieved for the hardness of their hearts, he saith unto the man, Stretch forth thine hand. And he stretched it out: and his hand was restored whole as the other. (KJV WBS YLT NAS RSV)
Mark 10:5 But Jesus said to them, "For your hardness of heart, he wrote you this commandment. (WEB KJV ASV WBS NAS RSV)
Mark 16:14 Afterward he was revealed to the eleven themselves as they sat at the table, and he rebuked them for their unbelief and hardness of heart, because they didn't believe those who had seen him after he had risen. (WEB KJV ASV DBY WBS NAS RSV)
Romans 2:5 But according to your hardness and unrepentant heart you are treasuring up for yourself wrath in the day of wrath, revelation, and of the righteous judgment of God; (WEB KJV ASV DBY WBS YLT)
Romans 11:25 For I do not wish you to be ignorant, brethren, of this secret -- that ye may not be wise in your own conceits -- that hardness in part to Israel hath happened till the fulness of the nations may come in; (YLT)
Ephesians 4:18 being darkened in understanding, estranged from the life of God by reason of the ignorance which is in them, by reason of the hardness of their hearts, (DBY YLT NAS RSV)
2 Timothy 2:3 Thou therefore endure hardness, as a good soldier of Jesus Christ. (KJV WBS)
Job 38:38 When the dust groweth into hardness, and the clods cleave fast together? (KJV WBS YLT)
Ecclesiastes 8:1 Who is like the wise man? And who knows the interpretation of a thing? A man's wisdom makes his face shine, and the hardness of his face is changed. (WEB ASV YLT RSV)
Lamentations 3:65 You will give them hardness of heart, your curse to them. (WEB JPS ASV NAS)