"Listen to advice and accept instruction, and in the end you will be wise... Stop listening to instruction, my son, and you will stray from the words of knowledge." -- Proverbs 19:20, 27
What's the difference between a good Doctor and a great Doctor... or a good mechanic and a great mechanic? One who is well trained in their field will be good. But one who continues to train throughout their career will be great. The difference is this: one has learned and the other is always learning.
This principle was understood by Solomon as he emphasized the need to listen and accept instruction to be wise. At the same time, those who stop listening to instruction will stray. The humble lifelong learner will be wise indeed, because they not only have learned, but are always learning.
Never believe that you finally know the Bible and all its teaching. There is always more to learn and much more to master. The difference between a good disciple and a great disciple is this: one has learned and the other is always learning. Which will you choose to be?