According to the Online Etymology Dictionary:
Omen – From the Latin word meaning foreboding.
Foreboding – A predilection, portent. “Sense of something bad about to happen”; from Old English forebodung, “prophecy”.
Prophecy – Originating from the Greek propheteia, “gift of interpreting the will of the gods”.
Book of Jasher,8:1-11:
1 And it was in the night that Abram was born, that all the servants of Terah, and all the wise men of Nimrod, and his conjurors came and ate and drank in the house of Terah, and they rejoiced with him on that night.
2 And when all the wise men and conjurors went out from the house of Terah, they lifted up their eyes toward heaven that night to look at the stars, and they saw, and behold one very large star came from the east and ran in the heavens, and he swallowed up the four stars from the four sides of the heavens.
3 And all the wise men of the king and his conjurors were astonished at the sight, and the sages understood this matter, and they knew its import.
4 And they said to each other, This only betokens the child that has been born to Terah this night, who will grow up and be fruitful, and multiply, and possess all the earth, he and his children for ever, and he and his seed will slay great kings, and inherit their lands.
5 And the wise men and conjurors went home that night, and in the morning all these wise men and conjurors rose up early, and assembled in an appointed house.
6 And they spoke and said to each other, Behold the sight that we saw last night is hidden from the king, it has not been made known to him.
7 And should this thing get known to the king in the latter days, he will say to us, Why have you concealed this matter from me, and then we shall all suffer death; therefore, now let us go and tell the king the sight which we saw, and the interpretation thereof, and we shall then remain clear.
8 And they did so, and they all went to the king and bowed down to him to the ground, and they said, May the king live, may the king live.
9 We heard that a son was born to Terah the son of Nahor, the prince of thy host, and we yesternight came to his house, and we ate and drank and rejoiced with him that night.
10 And when thy servants went out from the house of Terah, to go to our respective homes to abide there for the night, we lifted up our eyes to heaven, and we saw a great star coming from the east, and the same star ran with great speed, and swallowed up four great stars, from the four sides of the heavens.
11 And thy servants were astonished at the sight which we saw, and were greatly terrified, and we made our judgment upon the sight, and knew by our wisdom the proper interpretation thereof, that this thing applies to the child that is born to Terah, who will grow up and multiply greatly, and become powerful, and kill all the kings of the earth, and inherit all their lands, he and his seed forever.
5 YHWH brought him outside, and said, “Look now toward the sky, and count the stars, if you are able to count them.” He said to Abram, “So will your offspring be.
13 He said to Abram, “Know for sure that your offspring§ will live as foreigners in a land that is not theirs, and will serve them. They will afflict them four hundred years. 14 I will also judge that nation, whom they will serve. Afterward they will come out with great wealth….
12 He dreamed. Behold, a stairway set upon the earth, and its top reached to heaven. Behold, the angels of God ascending and descending on it. 13 Behold, YHWH stood above it, and said, “I am YHWH, the God of Abraham your father, and the God of Isaac. The land whereon you lie, to you will I give it, and to your offspring†. 14 Your offspring‡ will be as the dust of the earth, and you will spread abroad to the west, and to the east, and to the north, and to the south. In you and in your offspring§ will all the families of the earth be blessed.16 Jacob awakened out of his sleep, and he said, “Surely YHWH is in this place, and I didn’t know it.”
27 Daniel answered before the king, and said, The secret which the king has demanded can neither wise men, enchanters, magicians, nor soothsayers, show to the king; 28 but there is a God in heaven who reveals secrets, and he has made known to the king Nebuchadnezzar what shall be in the latter days. Your dream, and the visions of your head on your bed, are these:
29 as for you, O king, your thoughts came on your bed, what should happen hereafter; and he who reveals secrets has made known to you what shall happen. 30 But as for me, this secret is not revealed to me for any wisdom that I have more than any living, but to the intent that the interpretation may be made known to the king, and that you may know the thoughts of your heart.
31 You, O king, saw, and behold,* a great image. This image, which was mighty, and whose brightness was excellent, stood before you; and its aspect was awesome. 32 As for this image, its head was of fine gold, its breast and its arms of silver, its belly and its thighs of brass, 33 its legs of iron, its feet part of iron, and part of clay. 34 You saw until a stone was cut out without hands, which struck the image on its feet that were of iron and clay, and broke them in pieces. 35 Then was the iron, the clay, the brass, the silver, and the gold, broken in pieces together, and became like the chaff of the summer threshing floors; and the wind carried them away, so that no place was found for them: and the stone that struck the image became a great mountain, and filled the whole earth.
36 This is the dream; and we will tell its interpretation before the king. 37 You, O king, are king of kings, to whom the God of heaven has given the kingdom, the power, and the strength, and the glory; 38 and wherever the children of men dwell, the animals of the field and the birds of the sky has he given into your hand, and has made you to rule over them all: you are the head of gold.
39 After you shall arise another kingdom inferior to you; and another third kingdom of brass, which shall bear rule over all the earth. 40 The fourth kingdom shall be strong as iron, because iron breaks in pieces and subdues all things; and as iron that crushes all these, shall it break in pieces and crush. 41 Whereas you saw the feet and toes, part of potters’ clay, and part of iron, it shall be a divided kingdom; but there shall be in it of the strength of the iron, because you saw the iron mixed with miry clay.42 As the toes of the feet were part of iron, and part of clay, so the kingdom shall be partly strong, and partly broken. 43 Whereas you saw the iron mixed with miry clay, they shall mingle themselves with the seed of men; but they shall not cling to one another, even as iron does not mingle with clay.
44 In the days of those kings shall the God of heaven set up a kingdom which shall never be destroyed, nor shall its sovereignty be left to another people; but it shall break in pieces and consume all these kingdoms, and it shall stand forever. 45 Because you saw that a stone was cut out of the mountain without hands, and that it broke in pieces the iron, the brass, the clay, the silver, and the gold; the great God has made known to the king what shall happen hereafter: and the dream is certain, and its interpretation sure.
1 But in the latter days, it will happen that the mountain of YHWH’s temple will be established on the top of the mountains, and it will be exalted above the hills; and peoples will stream to it. 2 Many nations will go and say,“Come, and let us go up to the mountain of YHWH, and to the house of the God of Jacob; and he will teach us of his ways, and we will walk in his paths.” For the law will go out of Zion, and YHWH’s word from Jerusalem; 3 and he will judge between many peoples, and will decide concerning strong nations afar off.
There are intrinsic differences between prophecy and an omen. One of the most delineating characteristics is clarity; an omen is subjective and prophecy is objective.
According to the Encyclopaedia Britannica, an omen is an observed phenomenon, including natural occurrences of lightning, cloud movements, the flight of birds, paths of certain sacred animals which had a special (occult or hidden) meaning.
Prophecy is described to be a divinely inspired revelation or interpretation. It is a clear and correct interpretation of a future revelation because YHWH has ordered it.
I have been moved to highlight and frame these passages because they are very important pertaining what is to come. YHWH is speeding up time in order to manifest this in the lower realms of reality.
YHWH is about to cause shockingly truthful secrets to be revealed and he will begin to clearly delineate between those whom he blesses from those whom he curses. It will be just like the revelations of Egypt illustrated in Exodus 7-on all over again.