Revelation from the Holy Spirit is like medicine in that it must be taken in small doses, daily. It must be received, swallowed, if you will. We must not overwhelm spiritual infants with meat, (unless the Holy Spirit wants to), but typically  babies cannot receive meat (mature doctrine) - it needs to be digested by us teachers, chewed into small pieces, then regurgitated in a form they can swallow. 

       So those of us who are mature  must be aware of the recipients of our teaching ministry  - we must constantly seek the Holy Spirit  - urging him to adjust our words to suit the hearer. Even Jesus did not give the full understanding of the revelation he was receiving from the Father by his Spirit,  he waited till he was alone with his heart-picked Apostles before giving understanding of the knowledge he was sharing.  Remember- everyone that listens is not always hearing. Everyone that listens is not always seeking truth. This is why Jesus said to his disciples, when they asked him why he spoke in parables - "Because it is given unto you to know the mysteries of the Kingdom of heaven, but to them it is not given". 

       And of so many sitting (and speaking) in churches across the land today, Jesus would say "Jesus would say "in them is fulfilled the prophecy of Isaiah which says BY HEARING YOU SHALL HEAR, AND SHALL NOT UNDERSTAND; AND SEEING YE SHALL SEE, AND SHALL NOT PERCEIVE: FOR THIS PEOPLE'S HEART HAS BECOME CALLOUSED, AND THEIR EARS ARE DULL OF HEARING, AND THEIR EYES THEY HAVE CLOSED; LEST AT ANYTIME  THEY SHOULD SEE WITH THEIR EYES, AND HEAR WITH THEIR EARS, AND SHOULD UNDERSTAND WITH THEIR HEART, AND SHOULD BE CONVERTED, AND I SHOULD HEAL THEM"

       To his disciples,  to those who are wholeheartedly focused on him, on following him, on getting as close to him as possible,  he says - "BUT BLESSED ARE YOUR EYES (of understanding) FOR THEY SEE; AND YOURBEARS, FOR THEY HEAR....FOR MANY PROPHETS AND RIGHTEOUS MEN HAVE DESIRED TO SEE WHICH YOU SEE AND TO HEAR WHICH YOU HEAR AND HAVE NOT SEEN OR HEARD THEM". 

       Even for the very elect - the mightiest of Apostles, there are times when they do not understand what it is Jesus is doing, till much later - " WHAT I DO THOU KNOWEST NOT NOW; BUT THOU SHALT KNOW HEREAFTER".  Always take heart and be encouraged,  dear brother or sister in Christ - that if you continue to seek him with all your heart - if you continue to "walk and talk" with him as you continue your life's journey, this will be said of you too - "THEN OPENED HE THEIR UNDERSTANDING, THAT THEY MIGHT UNDERSTAND THE SCRIPTURES".  It is Jesus himself and no man who opens the eyes of our understanding. It is only by personally fellowshipping with him that true understanding comes - not by sitting in a pew week after week - for when we personally sup with him, in our singleness of heart, he will tailor our understanding,  he will personally choose the revelation WE need at that particular time in our lives. He will minister to us as an apostle,  when we need him so, or a prophet if that's what we need at that moment. Or as a teacher, etc.

       One sermon, once a week, to the masses is a hit or miss proposition because everyone is inba different place, different levels of maturity,  different heart conditions, though, when the Holy Spirit is teaching- he can anoint the hearts of all present so that all receive from him what they need, from one sermon. This happens when the speaker and hearer are both in one accord - one Spirit,  one Faith, one Baptism - one Father above all, in all, and through all. Take also this promise to heart - "UNTO YOU THAT HEAR SHALL MORE BE GIVEN"