Hebrews 3:6

3:6 But Christ is faithful as a son over God’s house. We are of his house, if in fact we hold firmly to our confidence and the hope we take pride in.

Hebrews 3:12

3:12 See to it, brothers and sisters, that none of you has an evil, unbelieving heart that forsakes the living God.

Hebrews 3:14

3:14 For we have become partners with Christ, if in fact we hold our initial confidence firm until the end.