What I am telling you in the darkness [i.e., in obscurity], you tell it in the light [i.e., openly]. And what you hear [whispered] in your ear [you should] declare it from the housetops.

Therefore, whatever you have said in the darkness [i.e., in obscurity] will be heard in the light [i.e., openly]. And what you have whispered in someone's ear in a back room, will be declared from the housetops.