Philippians 2:12
Wherefore, my beloved, as ye have always obeyed the gospel, not only in my presence, but now much more in my absence; be still working out your own salvation though with fear and trembling:
Hebrews 4:1-2
Let us therefore fear least a promise being left us of entering into his rest, any of us should seem to fall short of it:
Hebrews 12:25
See that ye reject not Him that speaketh; for if they escaped not, who rejected him that gave forth divine oracles on earth, much less shall we, if we turn away from Him that speaketh from heaven:
Hebrews 12:28-29
Wherefore since we receive a kingdom that cannot be shaken, let us have grace whereby we may serve God acceptably with reverence and holy fear: