Read Matthew 5:15 Using Other Translations
Neither do men light a candle, and put it under a bushel, but on a candlestick; and it giveth light unto all that are in the house.
Nor do people light a lamp and put it under a basket, but on a stand, and it gives light to all in the house.
No one lights a lamp and then puts it under a basket. Instead, a lamp is placed on a stand, where it gives light to everyone in the house.