It wasn't until later that the disciples recognized the significance of the words of the crowd at the triumphal entry. But, they did remember!
Whoever serves me honors the Father. (John 12:26) What an encouragement!
Jesus and the Father are on the same page implicitly (thunder and voice from heaven)and explicitly (If you've seen me, you've seen the one who sent me).
Because of the hardening work of God, some were not able to believe (John 12:39). This look on the outside like they loved the glory of men more than the glory of God (John 12:43). How can they believe and not confess? What nuance is John explaining here (John 12:42)?