When the large crowd of the Jews learned that Jesus 1 was there,
not only on account of him
but also to see Lazarus, o whom he had raised from the dead.
p So the chief priests made plans to put Lazarus to death as well,
because q on account of him many of the Jews were going away and believing in Jesus.
Clearly, Lazarus' resurrection had become known to many.
Consequently, Lazarus must die because his life is drawing people to Christ.
Confronted with Lazarus' testimony, allegiances are changing from the Jews to Jesus. This is genuine faith. They are trusting in Christ and believing that he is who he says he is.
Klink: Everything Lazarus did—every breath, every conversation, every time he recounted being awoken in the dark, cold tomb—was a thorn in the flesh of the Jewish authorities. They needed to silence his (living) testimony. Edward W. Klink III, John, ed. Clinton E. Arnold, Zondervan Exegetical Commentary on the New Testament (Grand Rapids, MI: Zondervan, 2016), 529.
"as well": from this point forward, it will no longer be enough simply to kill Jesus. They will have to kill anyone who is able to testify to what Jesus has done. No one has a more powerful testimony at this time than Lazarus.
This is in the imperfect tense which indicates that this is a continual or ongoing action. Many were continually changing their alliance toward Christ.
Pericopal theology: The person and work of Christ on display is the ground on which people come to faith. The exchanged life is the best argument for the Gospel of Jesus Christ.
BIG IDEA: Faith is grounded in Jesus' person and work. 1. People come because of who He is and what He has done. (9) 2. Opposition arises wherever the glory of the Son is on display (10) 3. The exchanged life is the best argument for the Gospel of Jesus Christ. (11)