Luke 8:15
“But that on the good ground are they, which in an honest and good heart, having heard the word, keep it, and bring forth fruit with patience.”
They on the rock are they, which, when they hear, receive the word with joy; and these have no root, which for a while believe, and in time of temptation fall away.
And that which fell among thorns are they, which, when they have heard, go forth, and are choked with cares and riches and pleasures of this life, and bring no fruit to perfection.
But that on the good ground are they, which in an honest and good heart, having heard the word, keep it, and bring forth fruit with patience.
No man, when he hath lighted a candle, covereth it with a vessel, or putteth it under a bed; but setteth it on a candlestick, that they which enter in may see the light.
For nothing is secret, that shall not be made manifest; neither any thing hid, that shall not be known and come abroad.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“Therefore we ought to give the more earnest heed to the things which we have heard, lest at any time we should let them slip.”
“But he that shall endure unto the end, the same shall be saved.”
“Abide in me, and I in you. As the branch cannot bear fruit of itself, except it abide in the vine; no more can ye, except ye abide in me.”
“I have fought a good fight, I have finished my course, I have kept the faith:”
“For ye have need of patience, that, after ye have done the will of God, ye might receive the promise.”