Numbers 16:49
"Now they that died in the plague were fourteen thousand and seven hundred, beside them that died about the matter of Korah."
Cross References (ranked by relevance)
Numbers 25:9
And those that died in the plague were twenty and four thousand.
1 Chronicles 21:14
So the LORD sent pestilence upon Israel: and there fell of Israel seventy thousand men.
Hebrews 12:25
See that ye refuse not him that speaketh. For if they escaped not who refused him that spake on earth, much more shall not we escape, if we turn away from him that speaketh from heaven: