Isaiah 7 - 8

Isaiah speaks to the king, who is distressed at the approaching invading armies.  God desires to comfort the king, and invites him to ask for signal proof of his security.  The king, in an act of false piety, arrogantly declines to ask God to display His glory; so God designs His own sign - a baby born that will prove God's ability to perform on HIs own time schedule.  This promise also foreshadows the birth of Christ.  The baby born in Isaiah's day would see - in his lifetime, before he could even develop to maturity - God fulfilling His promises of deliverance.  God keeps His word in His time.