“And He said unto them, ‘Is a candle brought to be put under a bushel, or under a bed?, and not to be set on a candlestick? For there is nothing hid, which shall not be manifested; neither was any thing kept secret, but that it should come abroad. If any man have ears to hear, let him hear.’
And He said unto them, ‘Take heed what ye hear: with what measure ye mete, it shall be measured to you: and unto you that hear shall more be given. For he that hath, to him shall be given: and he that hath not, from him shall be taken even that which he hath.’” Mark 4:21-25 (KJB)
Since Jesus had just explained the parables mentioned before, now Jesus it telling them the importance of giving these words, telling them to others. Jesus has revealed to them the light and power of the gospel. Now the apostles have the responsibility to share the gospel with others.
So as we who have believed; because the Spirit of God has opened our understanding, revealed to us the gospel of Christ; so also do we have the power and calling to let it shine and endeavor to give it to others.
Let us take note of the caveat’, “For he that has, to him shall be given: and he that has not, from him shall be taken even that which he has.” If God gives me the ability to understand, and I share it, I am faithful in giving it away, then He will give me more understanding; but if I keep it all to myself, and do not share it, then He will take away even what I have.
Nothing was held back in giving understanding of the mystery of the gospel; its light, power, and glory; neither did they put it under a bushel to hide it. Neither should the Christian of today.