John 6

40 Again this is the will of Him who sent me, that everyone who ‘sees’ the Son and believes into Him may have eternal life, and I will raise him up at the last day."*Since only His contemporaries could see Jesus physically, everyone else has to ‘see’ Him spiritually. But in verse 36 the Lord says that even though they were seeing Him physically, they were not believing—so even for the contemporaries the ‘seeing’ had to be spiritual. Jesus Himself will raise up His followers.