◄ Revelation 9:15
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King James Bible
And the four angels were loosed, which were prepared for an hour, and a day, and a month, and a year, for to slay the third part of men.
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Luke 1[/h][SUP]18 [/SUP]Zechariah said to the angel, “How can I be sure this will happen? I’m an old man now, and my wife is also well along in years.”
[SUP]19 [/SUP]Then the angel said, “I am Gabriel! I stand in the very presence of God. It was he who sent me to bring you this good news! [SUP]20 [/SUP]But now, since you didn’t believe what I said, you will be silent and unable to speak until the child is born
Not always, depends on their mission.