It is Hard to Fill a Cup Already Full

When Jesus started His ministry he selected disciples who were men who had faith in God, and were looking forward to the coming Messiah, but they were not religious men. They were mostly fishermen, one was a tax collector and the others are assumed to have been tradesmen. Why would Jesus choose such men as His Apostles?

“It is hard to fill a cup that is already full.” – Avatar, 2009

Today’s quote is a movie quote, not a Bible quote, but it still encapsulates a wise truth about teaching and learning. For someone to learn, they must be open and have room for new knowledge and ideas, or the teaching is in vain. And of course, Jesus knew this very well.

When Jesus was teaching His disciples, on one occasion in the Bible, he made reference to filling wine skins with new wine.

“No one puts new wine into old wineskins; or else the new wine will burst the wineskins and be spilled ” – Luke 5:37

Here is the full context: “Then He spoke a parable to them: ‘No one puts a piece from a new garment on an old one; otherwise the new makes a tear, and also the piece that was taken out of the new does not match the old. And no one puts new wine into old wineskins; or else the new wine will burst the wineskins and be spilled, and the wineskins will be ruined. But new wine must be put into new wineskins, and both are preserved.'” – Luke 5:36-38 NKJV

This universal concept is simple and true: you cannot learn if you are not open to learning, and you cannot teach someone who is not willing to unlearn that which they already know. If you are truly open to learning, you must be willing to admit that one of these two things may be true: 1) your knowledge is incomplete; or 2) your knowledge is incorrect. Otherwise, your cup is already full and there is no room to put in the new wine.

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