Prov 29:11 A fool uttereth all his mind: but a wise man keepeth it in till afterwards.  Afterwards is at a later or a succeeding time.

More times than not you shouldn’t tell all you know.  You might tell some and then wait.  You’re not trying to impress others with all you know.  You are trying to ‘impart’ wisdom to them.  Thus, a wise man keeps it in till afterwards.  The reasons are:

To keep from exceeding the capacity of his audience.  You need to recognize when you’ve reached the capacity of the person to whom you’re speaking.  He can receive, at one time, only so much of what you’ve learned over time.  When you reach his capacity, stop.  Bro Sehmish says that if you don’t, the person spills what he has heard and you lose your audience.

To give his audience time to assimilate what he’s saying.  When imparting wisdom to someone, you have time to speak and listen.  You need to be sure he’s “getting it”.  Like one man to whom we witnessed for many months.  We made sure he was understanding what he was hearing.  An acquaintance of mine dominates the conversation when he’s soul winning, and then gets them to pray.  He’s not even sure that they are getting it or receiving it.  Many times, I’m pretty sure they don’t get it.

To gauge the response of his audience.  You want to see if they are going to follow the wisdom they have already received.  They need time to apply what they’ve learned from you.  If they don’t, then you can save your breath.  A wise man won’t keep going.  If they do follow it, they can come back for more.  Then when they hear the next thing you give them, they can add it to what they have already begun to incorporate into their lives.  

Conclusion: remember these three points when you’re trying to pass on the wisdom God has given you.  Make sure not to give them more than they can handle at one time.  Make sure they get it.  And then, make sure they are applying in their lives the things they are hearing with their ears.