Revelation 2:3-7

and you have perseverance and have endured on account of My name, and have not become weary.

But I have this against you, that you have left your first love.

Therefore, remember from where you have fallen, and repent, and do the deeds you did at first; or else I am coming to you and I will remove your lampstand from its place—unless you repent.

But you have this, that you hate the deeds of the Nicolaitans, which I also hate.

The one who has an ear, let him hear what the Spirit says to the churches. To the one who overcomes, I will grant to eat from the tree of life, which is in the Paradise of God.’ Message to Smyrna