Amos 3:1-2 (NIV)
1 Hear this word the LORD has spoken against you, O people of Israel–against the whole family I brought up out of Egypt:
2 “You only have I chosen of all the families of the earth; therefore I will punish you for all your sins.”
On verses 1-2: The Lord chose Israel especially to be a light to other nations. However, Israel was not faithful to the Lord, breaking His heart and defaming His name with their continual idolatry. The fact that God would punish Israel for their sins shows us that with authority from God comes accountability from God.
What can we learn from this? God holds accountable those to whom He has given authority. If we are faithful with the authority He has given us, He will reward us. If we are unfaithful with that authority, He will discipline us.