'Hearts' in the Bible

But Christ as a son, over his house; whose house are we, if we keep our hearts fixed in the glad and certain hope till the end.

Harden not your hearts, as in the provocation, in the day of temptation in the wilderness:

for 40 years.Therefore I was provoked with that generationand said, “They always go astray in their hearts,and they have not known My ways.”

While it is said, To day if ye will hear his voice, harden not your hearts, as in the provocation.

Again, he limiteth a certain day, saying in David, To day, after so long a time; as it is said, To day if ye will hear his voice, harden not your hearts.

And then let themselves be turned away, it is not possible for their hearts to be made new a second time; because they themselves put the Son of God on the cross again, openly shaming him.

For this is the covenant that I will make with the house of Israel after those days, saith the Lord; I will put my laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to me a people:

How much more will the blood of Christ, who, being without sin, made an offering of himself to God through the Holy Spirit, make your hearts clean from dead works to be servants of the living God?

This is the covenant that I will make with them after those days, saith the Lord, I will put my laws into their hearts, and in their minds will I write them;

Let us draw near with a true heart in full assurance of faith, having our hearts sprinkled from an evil conscience, and our bodies washed with pure water.

Do not be turned away by different strange teachings, because it is good for your hearts to be made strong by grace, and not by meats, which were of no profit to those who took so much trouble over them.

Make prayers for us, for we are certain that our hearts are free from the sense of sin, desiring the right way of life in all things.