Hebrews 2:3 asks how we can escape if we neglect such a great salvation—directly reinforcing the peril of scoffing at God's work as warned here.

Hebrews 3:12 warns against an evil, unbelieving heart that falls away—the same kind of unbelief Paul urges his hearers to avoid.

Hebrews 12:25 warns not to refuse the One speaking from heaven; Paul's warning against scoffing is a similar call to heed God's word.