This was done so that now God's many-sided wisdom could be made known through the church, to the rulers and authorities in the heavenly realms [Note: "Heavenly realms" here refers to the world around us, where these angelic beings (good or bad) view the unfolding of God's wonderful plan],

It was revealed to these prophets that you people, not they, were the ones being ministered to in the matters now being announced to you by those who preached the Gospel to you by the Holy Spirit, who was sent from heaven. [This message contained] things which angels would like to look into.

Man

And out of the Temple there came the seven angels that had the seven plagues [i.e., judgments]. They were dressed in clean, bright linen [clothing] and they had golden sashes wrapped around their chests.

And the armies in heaven, dressed in expensive, white, clean linen, followed Him, [riding] on white horses.

Upon

He held in his hand a little book [i.e., scroll] which was open. And he placed his right foot on the ocean and his left foot on the land,

How long

And they called out with a loud voice, "How long, holy and true Master, [will it be] before you judge the people living on earth and take revenge on them for [shedding] our blood?"

General references

"Tell us, when will these things [you just spoke of] happen? And what will be the sign [that indicates] when all these things are about to be fulfilled?"