Hebrews 2:1-3

We must therefore pay closer attention to what we have heard, in case we drift away.

Hebrews 10:28-29

Anyone who has rejected the law of Moses dies without mercy, on the evidence of two or of three witnesses.

Hebrews 12:25

See that you do not refuse to listen to His voice. For if they failed to escape, who refused to listen to their instructor upon earth, much less shall we escape, if we discard Him who speaks 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
We must therefore pay closer attention to what we have heard, in case we drift away.
Hebrews 10:28
Anyone who has rejected the law of Moses dies without mercy, on the evidence of two or of three witnesses.
Hebrews 12:25
See that you do not refuse to listen to His voice. For if they failed to escape, who refused to listen to their instructor upon earth, much less shall we escape, if we discard Him who speaks from heaven.