The Bride of Christ or bride, the Lamb's wife is a term used in reference to a group of related verses in the Bible, in the Gospels, Revelation, the Epistles and related verses in the Old Testament. Sometimes, the Bride is implied by calling Jesus a Bridegroom. For over 1500 years, the Church was identified as the bride betrothed to Christ. However, there are instances of the interpretation of the usage of varying from church to church. Most believe that it always refers to the church.
In the Gospel of John, John the Baptist speaks of Jesus Christ as the bridegroom and mentions the bride.
He that hath the bride is the bridegroom: but the friend of the bridegroom, which standeth and heareth him, rejoiceth greatly because of the bridegroom's voice: thus my joy therefore is fulfilled.
That is the only place in the Gospels that the bride is mentioned, but because a bridegroom must have a bride, all other mentions of the bridegroom imply the bride.
In the three Synoptic Gospels, when Jesus is asked why his disciples do not fast, but the followers of John and the Pharisees do, Jesus answers:
And Jesus said unto them, Can the friends of the bridegroom fast, as long as the bridegroom is with them? but the days will come, when the bridegroom shall be taken from them, and then shall they fast.
In Matthew 9:15, Mark 2:19 and Luke 5:34, the Apostles are referred to as the friends, guests, or children depending on the translation, of the Bridegroom commonly accepted to be Jesus Christ.
The Bridegroom is also mentioned in the Parable of the Ten Virgins.
"Then the kingdom of heaven will be like ten virgins who took their lamps and went out to meet the bridegroom."