They answer to what is written in the Revelation, His wife has made herself ready. And the feast is on earth, not in heaven. East and west are never used in the Bible referring to the celestial realm. "from one end of heaven to the other" is the Biblical description there.
Much love!
Revelation 19
King James Version
19 And after these things I heard a great voice of much people in heaven, saying, Alleluia; Salvation, and glory, and honour, and power, unto the Lord our God:
2 For true and righteous are his judgments: for he hath judged the great whore, which did corrupt the earth with her fornication, and hath avenged the blood of his servants at her hand.
3 And again they said, Alleluia And her smoke rose up for ever and ever.
4 And the four and twenty elders and the four beasts fell down and worshipped God that sat on the throne, saying, Amen; Alleluia.
5 And a voice came out of the throne, saying, Praise our God, all ye his servants, and ye that fear him, both small and great.
6 And I heard as it were the voice of a great multitude, and as the voice of many waters, and as the voice of mighty thunderings, saying, Alleluia: for the Lord God omnipotent reigneth.
7 Let us be glad and rejoice, and give honour to him: for the marriage of the Lamb is come, and his wife hath made herself ready.
8 And to her was granted that she should be arrayed in fine linen, clean and white: for the fine linen is the righteousness of saints.
9 And he saith unto me, Write, Blessed are they which are called unto the marriage supper of the Lamb. And he saith unto me, These are the true sayings of God.
Here is the wedding, no gathering from the east and west.
IF YOU ARE REFERRING TO THIS GATHERING:
Matthew 24:29-31
King James Version
29 Immediately after the tribulation of those days shall the sun be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken:
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.
31 And he shall send his angels with a great sound of a trumpet, and they shall gather together his elect from the four winds, from one end of heaven to the other.
Notic e it is the opposite of the event in heaven.
In rEv. 19 the wedding takes place and then Jesus returns while in the Matt. passage Jesus returns and then the gathering takes place.