Do not harden your hearts as in the rebellion, In the day of trial in the wilderness,

Therefore I was angry with that generation, And said, ‘They always go astray in their heart, And they have not known My ways.’

Beware, brethren, lest there be in any of you an evil heart of unbelief in departing from the living God;

while it is said: “Today, if you will hear His voice, Do not harden your hearts as in the rebellion.”

again He designates a certain day, saying in David, “Today,” after such a long time, as it has been said: “Today, if you will hear His voice, Do not harden your hearts.”

For the word of God is living and powerful, and sharper than any two-edged sword, piercing even to the division of soul and spirit, and of joints and marrow, and is a discerner of the thoughts and intents of the heart.

For this is the covenant that I will make with the house of Israel after those days, says the Lord: I will put My laws in their mind and write them on their hearts; and I will be their God, and they shall be My people.

“This is the covenant that I will make with them after those days, says the Lord: I will put My laws into their hearts, and in their minds I will 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 carried about with various and strange doctrines. For it is good that the heart be established by grace, not with foods which have not profited those who have been occupied with them.