In the Word Of The Day, God speaks only to His Churches in Revelation 3:6, because by this time, most of the world has rejected the Gospel and turned a deaf ear to His Words. Therefore God prepares His church for what’s to come, by making it clear that they better listen. And those that do listen are granted extra blessings by doing so in Revelation 1:3 KJV.
“He who has an ear, lethimhear what the Spirit says to the churches.” Rev. 3:6
The blessing to those that take heed:
“Blessed is he who reads and those who hear the words of this prophecy, and keep those things which are written in it; for f the time is near.” Rev. 1:3