God sent Isaiah to King Ahaz and promised a sign: a virgin will give birth to a son and will call him Immanuel. He will be a sign that God will deliver Judah from the attack of other nations. Will Ahaz trust God or another power? Then Isaiah talks about another Immanuel who will be born in the future. He will accomplish a greater salvation and reign on David’s throne. Matthew shows us how God’s promise was fulfilled in Jesus of Nazareth. God is faithful. Will we trust Jesus or another power?