The people answered him, We have heard out of the law that Christ abideth for ever: and how sayest thou, The Son of man must be lifted up? who is this Son of man?
Berean Study Bible (BSB) - John 12:34 >The crowd replied, “We have heard from the Law that the Christ will remain forever. So how can you say that the Son of Man must be lifted up? Who is this Son of Man?”