Commentaries:
Adam Clarke
And the third angel followed - Bishop Bale considers these three angels as three descriptions of preachers, who should bear their testimony against the corruptions of the papal Church.
The beast and his image - See the notes on Revelation 13:1-18 (note).
Mark in his forehead - Such as the sectarial marks of the idolatrous Hindoos, as has been observed before.
Other Adam Clarke entries containing Revelation 14:9:
Leviticus 19:28
DISCLAIMER: Church of the Great God (CGG) provides these resources to aid the individual in studying the Bible. However, it is up to the individual to "prove all things, and hold fast to that which is good" (I Thessalonians 5:21). The content of these resources does not necessarily reflect the views of CGG. They are provided for information purposes only.