Hos 2:19-20, Eph 5:31-32, Rev 19:7

The Old Testament prophesied that God would marry us. (Hos 2:19-20)

Hos 2:19 And I will betroth thee unto me for ever; yea, I will betroth thee unto me in righteousness, and in judgment, and in lovingkindness, and in mercies. 20 I will even betroth thee unto me in faithfulness: and thou shalt know the Lord.

The church is the bride of Christ. (Eph 5:31-32)

Eph 5:31 For this cause shall a man leave his father and mother, and shall be joined unto his wife, and they two shall be one flesh. 32 This is a great mystery: but I speak concerning Christ and the church.

We will participate in the wedding supper of the Lamb as the bride of Christ on the day of Christ. (2 Cor 11:2, Rev 19:7)

2 Cor 11:2 For I am jealous over you with godly jealousy: for I have espoused you to one husband, that I may present you as a chaste virgin to Christ.

Rev 19:7 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.