Fourth Sunday of Advent

The LORD spoke to Ahaz, saying:
Ask for a sign from the LORD, your God;
let it be deep as the netherworld, or high as the sky!
But Ahaz answered,
“I will not ask!  I will not tempt the LORD!”
Then Isaiah said:
Listen, O house of David!
Is it not enough for you to weary people,
must you also weary my God?
Therefore the Lord himself will give you this sign:
the virgin shall conceive, and bear a son,
and shall name him Emmanuel.