Jesus likened the kingdom of heaven to a wedding banquet.
Do you know the bride of the heavenly wedding banquet?

(Matthew 22:2)
“The kingdom of heaven is like a king who prepared a wedding banquet for his son.”
The king who prepared for the wedding banquet refers to God. The son, the bridegroom, represents Jesus. And the inviting people stands for those who will be saved and participate in the heavenly wedding banquet of the eternal life. So, the bible says that the blessed are those who invited to the wedding banquet.

(Rev 19:9)
Then he said to me, "write, 'blessed are those who are invited to the marriage supper of the lamb." ...

However, the bride is missing in the parable of the wedding banquet in Matthew. The heavenly wedding banquet couldn't be held because the appointed time of it did not yet come. Then, when will it be held?

(Rev 19:6~8)
Then I heard what sounded like a great multitude, like the roar of rushing waters and like loud peals of thunder, shouting:
“Hallelujah! For our Lord God Almighty reigns. Let us rejoice and be glad and give him glory! For the wedding of the Lamb has come, and his bride has made herself ready. Fine linen, bright and clean, was given her to wear.” (Fine linen stands for the righteous acts of God’s holy people.)

The bride appears along with the Lamb, the bridegroom. The Lamb represents the second coming Jesus because the book of Revelation is Jesus' prophecy written by the Apostle John around A.D. 96 and at the Jesus' first coming the bride didn't appear. This shows that the wedding is to held at Jesus' second coming. Then, who is the bride, the wife of Lamb?

(Rev 21:9~10)
One of the seven angels who had the seven bowls full of the seven last plagues came and said to me, “Come, I will show you the bride, the wife of the Lamb.” And he carried me away in the Spirit to a mountain great and high, and showed me the Holy City, Jerusalem, coming down out of heaven from God.

(Gal 4:26)
But the Jerusalem that is above is free, and she is our mother.
Whom did the angel say he would show the Apostle John? He said that he would show him the bride, the wife of the Lamb. Comparing Gal 4:26 with Rev 21:9~10 Jerusalem refers to the wife of the Lamb. That is, She is our spiritual Mother, God the Mother, who gives us the eternal life that God promised. No one cannot receive a new life without the spiritual Mother.

According to the prophecy in the bible the heavenly Father and the heavenly Mother has come and held the heavenly wedding banquet of the life.

(Rev 22:17)
The Spirit and the bride say, “Come!” And let the one who hears say, “Come!” Let the one who is thirsty come; and let the one who wishes take the free gift of the water of life.