Hebrews 2:1-3

Therefore it behooves us the more earnestly to give heed to the things which we have heard, lest at some time we may leak out.

Hebrews 10:28-29

The one having rejected the law of Moses dies without mercy before two or three witnesses:

Hebrews 12:25

See that you do not reject the one speaking: for if they escape not having rejected the one delivering them the divine oracles on earth, how much more shall we not escape, who turn away from the one speaking from the heavens:

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 it behooves us the more earnestly to give heed to the things which we have heard, lest at some time we may leak out.
Hebrews 10:28
The one having rejected the law of Moses dies without mercy before two or three witnesses:
Hebrews 12:25
See that you do not reject the one speaking: for if they escape not having rejected the one delivering them the divine oracles on earth, how much more shall we not escape, who turn away from the one speaking from the heavens: