Can someone please show me where the Bible says that the bride is the church in general?
In the Old Testament there are numerous verses describing God as the husband to Israel - marriage - and then refers to idolatry as adultery.
1 Then shall the kingdom of heaven be likened unto ten virgins, which took their lamps, and went forth to meet the bridegroom.
10 And while they went to buy, the bridegroom came; and they that were ready went in with him to the marriage: and the door was shut.
Matthew 25:
25 Husbands, love your wives, even as Christ also loved the church, and gave himself for it;
26 That he might sanctify and cleanse it with the washing of water by the word,
27 That he might present it to himself a glorious church, not having spot, or wrinkle, or any such thing;
but that it should be holy and without blemish.
Ephesians 5:25-27
1 Would to God ye could bear with me a little in my folly: and indeed bear with me.
2 For I am jealous over you [the saints at Corinth] with godly jealousy: for I have espoused you [the Church] to one husband,
that I may present you as a chaste virgin [bride] to Christ [the bridegroom].
2Corinthians 11:1-2
Wherefore, my brethren, ye also are become dead to the law by the body of Christ; that ye should be
married to another, even to him
who is raised from the dead, that we should bring forth fruit unto God.
Romans 7:4
19 And Jesus said unto them, Can the children of the bridechamber fast, while the bridegroom is with them?
as long as they have the bridegroom with them, they cannot fast.
20 But the days will come, when the bridegroom shall be taken away from them, and then shall they fast in those days.
Mark 2:19-20
Jesus referring to himself here as the bridegroom
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.
Revelation 19:7-8
The bride is the Church - the saints - those who will rise up to meet Jesus in the air at his triumphant and glorious second coming.
As to how embracing or inclusive this population is - belongs to Jesus. When Paul and other Apostles write about the Church
and the saints, they are, of course, referring exclusively to the first century gospel [described best in Acts].
16 For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God:
and the dead in Christ shall rise first:
17 Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air:
and so shall we ever be with the Lord.
1Timothy 4:16-17
The Church [bride] that will rise up to be for ever with the Lord [bridegroom] at the marriage feast (or marriage supper) will be
those who Jesus deems to be worthy of resurrection from death or instantly transformed in the twinkling of an eye.
I hope that I am included, and pray that I keep my walk true and faithful to the gospel.