Philippians 2:12
So then, my beloved, as ye always obeyed, not as in my presence only, but now much more in my absence, work out your own salvation with fear and trembling;
Hebrews 4:1-2
Let us then fear, since a promise is still left us of entering into his rest, lest any one of you should appear to fail of obtaining it.
Hebrews 12:25
See that ye refuse not him who speaketh. For if they did not escape, who refused him who spoke his will on earth, much more shall not we, if we turn away from him who speaketh from heaven;
Hebrews 12:28-29
Wherefore receiving a kingdom which cannot be shaken, let us have grace, whereby we may serve God acceptably, with reverence and godly fear.