One of his disciples, the one whom Jesus kept loving, had been sitting very close to him. (John 13:23)

You have to be close to someone to be able to hear the sharing of a secret. Friends that have a very good relationship can reveal secrets because they trust each other. Although the Lord Jesus loved all of His disciples John was especially close to the Lord and he was referred to as the “beloved”. The Lord Jesus trusted John years later to share the profound secrets of the end of days written in the book of Revelation. If we want to receive profound revelation from the Lord we have to get closer to Him and listen to His Word.