Charles Spurgeon Commentary Revelation 14:6

"And I saw another angel flying in mid heaven, having eternal good tidings to proclaim unto them that dwell on the earth, and unto every nation and tribe and tongue and people;" — Revelation 14:6 (ASV)

And I saw –

What wonderful sights John saw! I do not wonder that he saw them; he had leaned his head on Christ's bosom, and that qualified him to see what you and I cannot see. Near communion with Christ is the best qualification for a vision of mystery. Get yourself into the very heart of Christ, and you will see wonderful things: "I saw" –