Please note that during the 2nd coming of Christ the kings and the armies of the world will know it so it is no secret. The kings and their armies will be prepared to battle Jesus at Armageddon because they refuse Jesus who will claim back the earth.
Rev 16:13 And I saw three unclean spirits like frogs come out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet.
14 For they are the spirits of devils, working miracles, which go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty.
(Armageddon battle)
Rev 19:19 (they know Jesus is coming)
19 And I saw the beast, and the kings of the earth, and their armies, gathered together to make war against him that sat on the horse, and against his army.
However, the timing of the rapture is not known and only Father knows.
Matt 24:36 But about that day or hour no one knows, not even the angels in heaven, nor the Son, but only the Father.
37 As it was in the days of Noah, so will it be at the coming of the Son of Man
When Jesus appears on the cloud be4 the grief Tribulation to rapture His saints the whole world will wail:
Rev 1:7 Behold, he cometh with clouds; and every eye shall see him, and they also which pierced him: and all kindreds of the earth shall wail because of him.
