JERUSALEM -- Some 2,000 years ago, the book of Acts recorded a simple prayer meeting that took place here on the day of Pentecost.
It gave birth to the Church. But on Pentecost Sunday, 2,000 years later, millions of Christians in more than 200 nations gathered to seek God. They're praying for the peace of Jerusalem, asking for revival and refreshing, and lifting up the needs of their communities and the world.
They came together in South America. In Santiago, Chile, about 1,000 Christians braved the cold at the seat of Chile's government to pray for their nation.
"Here in Chile Christians aren't afraid of a little rain. So even though rain threatens, here they are. And even if rained by the bucketful, they would still be here. Because we only want to seek the Lord. Amen," event organizer Rev. Alfredo Cooper said.
In Argentina, Christians marked the Global Day of Prayer in every one of Argentina's 23 provinces.
"These are difficult times. We believe the biggest miracle we hope for as Christians is that there would be salvation, that people would turn with all their hearts to God. That's the most important miracle we pray for this day. It's a day when all of Argentina, from north to south, 4,000, 5,000 kilometers, and all its width, in all the Argentine provinces and in hundreds of cities, Christians are praying, are seeking the face of God," Cristian Hofft said.
CBN reporter Dale Hurd was in London on Pentecost Sunday.
"During the past two years the Global Day of Prayer London has taken place in soccer stadiums in the city," Hurd said. "Jonathan Oloyede, convenor of the event, says this year they felt God was leading them to instead pray in churches in all 33 boroughs of London."
"This year it's much bigger than last year because many more churches can be involved in their communities. Rather than last year when we had 15-20,000 people this year we estimate there are around 60,000 getting involved right across London. So the vision is getting wider and deeper and we're saying to the church take the territory where you are. Plunge your stick into the ground where you are and say Jesus is Lord," Oloyede said.
Across the world in a heavily Muslim area of the Philippines, CBN's Lucille Talusan found Christians praying for God's blessings on their neighbors.
"This is LT and in the Philippines the land of my birth. In Iligan City located in predominantly Muslim island of Mindanao the Christians here are praying."
In Taiwan, in one of the tallest buildings in the world, Christians gathered to pray for the nations.
And in the United States, churches gathered throughout the nation.
"We represent this great and glorious Body of Christ, representing hundreds of churches around this region," Americans prayed.
Believers gathered in Fredericksburg, Va., not from from the boyhood home of George Washington. America's first president was a man of faith who prayed often and asked God to direct his thoughts, words and work.
"To be able to see in one room, under one roof all nationalities, all reformations, coming together praying to the same God. What a beautiful feeling that's going to be here today," said Bishop Joseph D. Henderson Sr., Founder of Bragg Hill Life Family Center.
The Global Day of Prayer does not end on Pentecost Sunday. It begins a season of service, where churches pledge to serve their communities and their nations for the next 90 days.