Hebrews 3:8; Hebrews 3:10; Hebrews 3:12; Hebrews 3:15; Hebrews 8:10; Hebrews 10:16; Hebrews 10:22; Hebrews 13:9 (King James Version)

8 Harden not your hearts, as in the provocation, in the day of temptation in the wilderness: 10 Wherefore I was grieved with that generation, and said , They do alway err in their heart; and they have not known my ways. 12 Take heed , brethren, lest there be in any of you an evil heart of unbelief, in departing from the living God. 15 While it is said , To day if ye will hear his voice, harden not your hearts, as in the provocation. 10 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: 16 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; 22 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. 9 Be not carried about with divers and strange doctrines. For it is a good thing that the heart be established with grace; not with meats, which have not profited them that have been occupied therein .