THE PROPHET ISAIAH lived through turbulent times, with kings of Judah who ranged from the good (Hezekiah, Jotham. Uzziah) to the evil (Ahaz, Manasseh, Amon).

In Isaiah 7, the prophet is sent to Ahaz by God with a word about the invasion of his land by the combined forces of Syria and the northern kingdom of Israel. This was despite the fact that Ahaz “made offerings in the Valley of the Son of Hinnom and burned his sons as an offering” (2 Chr. 28:3, ESV), a reference to the sacrifice of children to Molech.

God gave Ahaz a sign, an already-but-not-yet prophecy: 

Behold, the virgin shall conceive and bear a son, and shall call his name Immanuel. He shall eat curds and honey when he knows how to refuse the evil and choose the good. For before the boy knows how to refuse the evil and choose the good, the land whose two kings you dread will be deserted. (Isa. 7:14–16, ESV)

This was a promise that Judah would not be conquered by his northern neighbors, but it was also a promise that a virgin in the future (Mary) would give birth to “God with us”—the meaning of the name Immanuel.