Luke 8:16-18

16“Now no one lights a lamp and then covers it with a container [to hide it], or puts it under a bed; instead, he puts it on a lampstand, so that those who come in may see the light.

17For there is nothing hidden that will not become evident, nor anything secret that will not be known and come out into the open.

18So be careful how you listen; for whoever has [a teachable heart], to him more [understanding] will be given; and whoever does not have [a longing for truth], even what he thinks he has will be taken away from him.”