You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Crucifixion_of_Jesus

Context:
In Johannine "agent Christology" the submission of Jesus to crucifixion is a sacrifice made as an agent of God or servant of God, for the sake of eventual victory. This builds on the salvific theme of the Gospel of John which begins in John 1:29 with John the Baptist's proclamation: "The Lamb of God who takes away the sins of the world". Further reinforcement of the concept is provided in Revelation 21:14 where the "lamb slain but standing" is the only one worthy of handling the scroll (i.e. the book) containing the names of those who are to be saved.

Question:
What book details the submission of Jesus to being crucified?

agent Christology