Organizers say that over 500,000 churches and around 100 million Christians & Jews joined together around the world on Sunday to pray for the peace of Jerusalem.

It was all part of the Global Day of Prayer for the Peace of Jerusalem. The event started in 2002 as a "movement calling believers to intercede for the city God calls His own and to invoke God's blessing, purposes, and provision upon all of Jerusalem's people," organizers say.

Bishop Robert Stearns, executive director of Eagles' Wings and founder of the global day of prayer said people joined in from 175 nations via events and the live broadcast on God-TV.

“This is the largest annual prayer gathering in the world of Christians praying in solidarity with Jerusalem, the eternal undivided capital of Israel," Stearns says.

The event takes place on the first Sunday of every October. It was inspired by Psalm 122:6 call for prayer for Jerusalem which says, "Pray for the peace of Jerusalem: May those who love you be secure" (NIV).

“All over the world Christians are discovering and re-discovering that their spiritual home, their spiritual root system is here in Jerusalem," Stearns tells CBN.

"This is the city of the Bible. This is the city of our patriarchs. This is the city that forms so much of the foundation of our faith and also our future hope. And so Christians around the world are taking very seriously now that strong admonition to pray for the peace of Jerusalem."

Next year's Day of Prayer takes place on October 4, 2020.