λύχνος

We also have the word of the prophets as confirmed beyond doubt. And you will do well to pay attention to it, as to a lamp shining in a dark place, until the day dawns and the morning star rises in your hearts.

No one lights a lamp and puts it in a cellar or under a basket. Instead, he sets it on a stand, so those who enter can see the light.

So if your whole body is full of light, with no part of it in darkness, you will be radiant, as though a lamp were shining on you.”

Or what woman who has ten silver coins and loses one of them does not light a lamp, sweep her house, and search carefully until she finds it?

Neither do people light a lamp and put it under a basket. Instead, they set it on a stand, and it gives light to everyone in the house.