At the end of Revelation, how does John respond to Jesus' words, "Yes, I am coming soon"?

Answer: Amen. Come, Lord Jesus!

He who testifies to these things says, "Yes, I am coming soon." John answers, "Amen. Come, Lord Jesus!"

“He who testifies to these things says, “Yes, I am coming soon.” Amen. Come, Lord Jesus!”— Revelation 22:20 (BSB)