Ezekiel 11:19-20 And I will give them singleness of heart and put a new spirit within them. I will take away their stony, stubborn heart and give them a tender, responsive heart, so they will obey My decrees and regulations. Then they will truly be My people, and I will be their God.

Hebrews 3:14 For if we are faithful to the end, trusting God just as firmly as when we first believed, we will share in all that belongs to Christ.