3 Bible Verses about Angels, Important Events

This is the man who was with our forefathers and with the assembly [of Hebrews] in the wilderness [after] the angel had spoken to him at Mt. Sinai. He [is the one] who received the living messages [from God at Mt. Sinai] and gave them to us.

Then I saw an angel coming down from heaven, holding the key to the pit and a huge chain in his hand. And he took hold of the dragon, that old snake, who is the devil or Satan, and chained him up for a thousand years. He threw him into the pit, and closed it and sealed it over him, to keep him from deceiving the nations anymore until the thousand years were ended. After that time, he must be released for a short while.

For the Lord Himself [i.e., Jesus] will come down from heaven with a commanding shout [Note: This probably refers to Jesus' voice. See John 5:25, 28], [and] with the archangel's voice [i.e., Michael. See Jude 9] and with the sound of God's trumpet; [at this] the dead in [fellowship with] Christ will rise [from the dead] first.