Revelation 15:2

And before the throne there was something like a sea of glass, like crystal. And in the center and around the throne, four living creatures full of eyes in front and behind.

And when He had taken the scroll, the four living creatures and the twenty-four elders fell down before the Lamb, each one having a harp and golden bowls full of incense, which are the prayers of the saints.

Then I looked, and behold, a white horse, and he who sits on it had a bow; and a crown was given to him, and he went out overcoming and to overcome.

“And they overcame him because of the blood of the Lamb and because of the word of their witness, and they did not love their life even to death.

And the dragon stood on the sand of the seashore. Then I saw a beast coming up out of the sea, having ten horns and seven heads, and on his horns were ten diadems, and on his heads were blasphemous names.

and that no one will be able to buy or to sell, except the one who has the mark, either the name of the beast or the number of his name.