Understanding

"He (Jesus) said to them, “Do you bring in a lamp to put it under a bowl or a bed? Instead, don’t you put it on its stand?  
For whatever is hidden is meant to be disclosed, and whatever is concealed is meant to be brought out into the open.  
If anyone has ears to hear, let him hear.” 
“Consider carefully what you hear,” he continued. “With the measure you use, it will be measured to you—and even more.  
Whoever has will be given more; whoever does not have, even what he has will be taken from him.” 
              Mark 4:21-25
Jesus is the lamp. A lamp is there to illuminate. He brings to light what is meant to be disclosed.
Jesus brings into the open what is meant to be learned.
The purpose in Jesus coming to earth was to illuminate the minds of men. To show them the ways of God and the way to heaven.
The scripture here states, “consider carefully what you hear. With the measure you use, (to hear the truths of God) it will be measured to you and even more.”
All to often we read or hear scripture and choose only to understand what fits our way of thinking. We fail to listen with an open mind.
I find this is particularly so with some non-Christians.
They have a preconceived idea. Usually that God does not exist or at the very least Jesus is not who he says he is.
From their own presuppositions they then conclude that they are right irrespective of what the bible states.
If they even read the bible, they do so with a closed mind and no amount of reading the bible will ever convince them otherwise.
Thus the warning from Jesus.  “With the measure you use, it will be measured to you—and even more.”
If we fail to recognize Jesus for who he is then why should he, when we stand before him recognize us?
He is simply saying you acknowledge that I am the Son of God the Saviour of the mankind or I will not recognize you as one of my own and thus will cast you away.
Jesus says,
“Whoever believes in him is not condemned, but whoever does not believe stands condemned already because he has not believed in the name of God’s one and only Son.” 
                                 John 3:18.
  Where do you stand?
Think about it?