There's an awful lot of them don't act like it.
I often start this presentation with "Have you all got your invitation to the wedding feast of the Lamb?" When everyone says, they hope so, I respond, "I'm not getting one. I'm part of the Bride, I don't need one."
Notice in the Book of revelation, there are four distinct responses to the creation of the New Song: Started by elect in ch. 5. The 28 (7X4 or 2X12 + 4) already in heaven sing it, and all creation joins in the words (not the music).
In 19:6-7, the entire church speaks the words (not the music) and completes the song filling heaven, and they speak of the wedding feast of the Bride. They sound like they are watching from the sidelines.
In 15:2-3, those at the base of the mountain to the throne, by the crystal sea, sing (words and music) a derivative song. These people are ready to sing the wedding song. I think they are the invited guests. They have harps, but are not playing them yet.
In 14:2-3, they sing and play the song that only they can learn. Vs. 4 specifies they have the qualities of the Bride.
These are the four types of what Christians can become. Like outer gate, outer court, inner court, and holy of holies in the temple. Many are saved and watch from the sidelines, speaking the praise of God. Fewer yet have dynamic testimonies and choose to respond to the risk taking behavior that gets such victory over the Beast. Fewer yet stay pure from sin and follow the Lamb wherever He goes. Only the very few can sing the song that makes it possible for the power of the Lamb who was slain to change the world.