Luke 6:44-48

for each tree is known from its own fruit, for they do not gather figs from thorns, nor do they crop a grape from a bramble.

The good man out of the good treasure of his heart brings forth that which is good; and the evil man out of the evil treasure of his heart brings forth that which is evil; for out of the abounding of the heart his mouth speaks.

And why do you call Me, Lord, Lord, and do not do what I say?

Everyone who is coming to Me, and is hearing My words, and is doing them, I will show you to whom he is like:

he is like to a man building a house, who dug and deepened, and laid a foundation on the rock, and a flood having come, the stream broke forth on that house, and was not able to shake it, for it had been founded on the rock.