Hebrews 2:1

Warning Against Drifting Away

2:1 Therefore we must pay closer attention to what we have heard, so that we do not drift away.

Hebrews 9:26

9:26 for then he would have had to suffer again and again since the foundation of the world. But now he has appeared once for all at the consummation of the ages to put away sin by his sacrifice.

Hebrews 11:6

11:6 Now without faith it is impossible to please him, for the one who approaches God must believe that he exists and that he rewards those who seek him.