In Revelation 6:16-17, the wicked men of the world see Jesus before the throne of God. He will have a sickle in his hand (Revelation 14:14) indicating His intentions to execute wrath, to avenge the deaths of the martyred great tribulation saints in the fifth seal, Revelation 6:9-11.
Revelation 6:
9 And when he had opened the fifth seal, I saw under the altar the souls of them that were slain for the word of God, and for the testimony which they held:
10 And they cried with a loud voice, saying, How long, O Lord, holy and true, dost thou not judge and avenge our blood on them that dwell on the earth?
11 And white robes were given unto every one of them; and it was said unto them, that they should rest yet for a little season, until their fellowservants also and their brethren, that should be killed as they were, should be fulfilled.
In Revelation 6:16-17, the world will see Jesus, sickle in hand, His intentions made clear to avenge the deaths of the great tribulation martyred saints.
Revelation 6:
16 And said to the mountains and rocks, Fall on us, and hide us from the face of him that sitteth on the throne, and from the wrath of the Lamb:
17 For the great day of his wrath is come; and who shall be able to stand?
Jesus appearance in heaven, sickle in hand will be the Matthew 24:30a sign of the Son of Man appearing in heaven.
Matthew 24:30 And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory.
Jesus with a sickle in his hand (in Rev 14, no less) is not a sign.
Rev 12:1-2 is literally a 'sign'.
1And a great sign appeared in heaven: a woman clothed with the sun, with the moon under her feet, and on her head a crown of twelve stars.
Isaiah 7:
14Therefore the Lord Himself will give you a sign: Behold, the virgin will be with child and give birth to a son, and will call Him Immanuel.
f 15By the time He knows enough to reject evil and choose good, He will be eating curds and honey.
16For before the boy knows enough to reject evil and choose good, the land of the two kings you dread will be laid waste.
17The LORD will bring on you and on your people and on the house of your father a time unlike any since the day Ephraim separated from Judah—He will bring the king of Assyria.”
18On that day the LORD will whistle to the flies at the farthest streams of the Nile and to the bees in the land of Assyria.
19And they will all come and settle in the steep ravines and clefts of the rocks, in all the thornbushes and watering holes.
20On that day the Lord will use a razor hired from beyond the Euphrates—the king of Assyria—to shave your head and the hair of your legs, and to remove your beard as well.
21On that day a man will raise a young cow and two sheep,
22and from the abundance of milk they give, he will eat curds; for all who remain in the land will eat curds and honey.
23And on that day, in every place that had a thousand vines worth a thousand shekels of silver,
h only briers and thorns will be found.
24Men will go there with bow and arrow, for the land will be covered with briers and thorns.
25For fear of the briers and thorns, you will no longer traverse the hills once tilled by the hoe; they will become places for oxen to graze and sheep to trample.
Here is Revelation 14
14Then I looked, and behold, a white cloud, and seated on the cloud one like a son of man, with a golden crown on his head, and a sharp sickle in his hand.
15And another angel came out of the temple, calling with a loud voice to him who sat on the cloud, “Put in your sickle, and reap, for the hour to reap has come, for the harvest of the earth is fully ripe.”
16So he who sat on the cloud swung his sickle across the earth, and the earth was reaped.
17Then another angel came out of the temple in heaven, and he too had a sharp sickle.
18And another angel came out from the altar, the angel who has authority over the fire, and he called with a loud voice to the one who had the sharp sickle, “Put in your sickle and gather the clusters from the vine of the earth, for its grapes are ripe.”
19So the angel swung his sickle across the earth and gathered the grape harvest of the earth and threw it into the great winepress of the wrath of God.
No sign whatsoever!
No sign in Rev 6. No sign in Rev 14.
