Hebrews 2:2

2:2 For if the message spoken through angels proved to be so firm that every violation or disobedience received its just penalty,

Hebrews 13:7

13:7 Remember your leaders, who spoke God’s message to you; reflect on the outcome of their lives and imitate their faith.

Hebrews 13:22

13:22 Now I urge you, brothers and sisters, bear with my message of exhortation, for in fact I have written to you briefly.