Hebrews 2:1-3

Therefore we ought to give the more earnest heed to the things which we have heard, lest at any time we should let them slip.

Hebrews 10:28-29

He that despised the law of Moses died without mercy, under two or three witnesses.

Hebrews 12:25

for if they escaped not who refused him that delivered the oracle on earth, much more shall not we, who turn away from him that speaketh from heaven:

Treasury of Scripture Knowledge

Summary

Now they that died in the plague were fourteen thousand and seven hundred, beside them that died about the matter of Korah.

Bible References

Fourteen thousand

Hebrews 2:1
Therefore we ought to give the more earnest heed to the things which we have heard, lest at any time we should let them slip.
Hebrews 10:28
He that despised the law of Moses died without mercy, under two or three witnesses.
Hebrews 12:25
for if they escaped not who refused him that delivered the oracle on earth, much more shall not we, who turn away from him that speaketh from heaven: