The United Nations hosted a conference, 100 heads of state arrive.
1Make a joyful noise to Yahvah, all you lands.
2Serve Yahvah with gladness; come before his presence with singing.
3Know that he is Yahvah, our god; it is he who has made us, and not we, ourselves; we are his people, and the sheep of his pasture.
4Enter into his gates with thanksgiving, and into his courts with praise; be thankful to him and bless his name.
5For Yahvah is good; his mercy is everlasting; and his truth endures to all generations.
The United Nations was host to a climate change summit. 100 heads of state who had arrived on September 22, 2009. Obama gave an opening speech.
On September 23, 2009, the date of the Psalm, there was the opening of the general debate of the 64th General Assembly of the UN. It was opened at 9:00 AM by Ban Ki Moon.
Obama also gave a speech, is first on the floor of the UN.
Colonel Muammar Al-Qadhafi of Libya made headlines when he gave a 94 minute speech.
Mahmoud Ahmadinejad of Iran also gave a speech to a mostly empty hall.
By the next day, September 24, 2009, Obama chaired a general session of the security counsel. This was the first time a US President had chaired this meeting.
By the evening of the 24th Pittsburg was host to the G-20 summit.
Verse 1 opens with Serve God all you lands. All lands are represented at the UN, a match to the venue.
100 heads of state were expected, a match to the Psalm number itself.
The general assembly building appears to be referenced as God's court in verse 4.
His mercy endures forever, about like a Qadhafi speech... verse 5.