John 12:41

41These thingsταῦταsaidεἶπενIsaiahἨσαΐαςbecauseὅτιhe sawεἶδενtheτὴνgloryδόξανof Himαὐτοῦ,andκαὶspokeἐλάλησενconcerningπερὶHimαὐτοῦ.

Isaiah said these things because he saw His glory and spoke about Him.