Psalm 2 is a poem for nations. It’s about God’s blessings and promises. It’s also about the king God set apart to rule over the nations.
Psalm 2 describes two ways that nations can choose to live. One way is to respect God and to serve him. This is the wise choice and is the way that nations live well. Choosing this way means that nations do what God wants done. Their leaders obey God and recognise that God is the ruler who has complete authority. They recognise that only God has the power to keep their nation safe. God wants all nations and all people groups to follow him. All nations who choose to follow him are blessed.
The other way of living is to refuse to obey God. This leads to nations being judged and destroyed. Choosing this way means that the nations don’t accept God’s authority or follow his commands. Instead, they do evil things. This makes God angry. These nations don’t obey the king that God appointed. God called himself the father of this king. In this way the king was considered to be the son of God. God gave this king authority over all nations.
The Israelites understood that the psalm was talking about God’s covenant with David. It was talking about kings from the family line of David. Psalm 72 described what kind of rulers these kings should be. They should judge fairly and do what was right. They should punish those who did evil. Kings from David’s family line ruled in Jerusalem.
Psalm 2 talks about God’s holy mountain of Zion. Zion was another name for Jerusalem. It was holy because the temple was there. But the armies of Babylon destroyed Jerusalem and the temple. After that, no more kings from David’s family line ruled.
So the Jews came to understand Psalm 2 as a promise for a future time. They were waiting for God to send a king who would rule as God’s son. They called this king the messiah. New Testament writers understood that Psalm 2 was a prophecy about Jesus. This was talked about in Matthew 3:17, Acts 4:23–26 and Acts 13:32–33.