"[4] This was the vision and name she gave at Foursquare Church, founded in January 1923 in Los Angeles, during the dedication of the Angelus Temple in Echo Park, seating 5,300 people.

[8] McPherson was a flamboyant celebrity in her day, participating in publicity events, such as weekly Sunday parades through the streets of Los Angeles, along with the mayor and movie stars, directly to Angelus Temple.

She built the temple, as well as what is now known as Life Pacific University adjacent to it, on the northwest corner of land that she owned in the middle of the city.

McPherson's celebrity status continued after her death, with biopics such as the 1976 Hallmark Hall of Fame drama The Disappearance of Aimee depicting her life, as well as the 2006 independent film Aimee Semple McPherson, which particularly focused on her month-long disappearance in May–June 1926 and the legal controversy that followed.

In 1968, the Calvary Chapel Costa Mesa congregation of the International Church of the Foursquare Gospel (under pastor Chuck Smith) broke from the denomination and later formed an association of autonomous Charismatic Evangelical churches, today making up the Charismatic but non-Pentecostal denomination, Calvary Chapel.

[17] In October 2003, under Risser's tenure, the church sold the Los Angeles radio station KFSG-FM to the Spanish Broadcasting System for $250 million.

[23] The beliefs of the Foursquare Church are expressed in its Declaration of Faith, compiled by its founder, Aimee Semple McPherson.

[27] The church believes in the substitutionary atonement, accomplished by the death of Christ, and teaches that salvation is by grace through faith, not by good works.

[29] Consistent with its belief in human free will, the Foursquare Church also teaches that it is possible for a believer to backslide or commit apostasy.

[30] The Foursquare Church, a Finished Work Pentecostal denomination, teaches that sanctification is a continual process of spiritual growth.

The Foursquare Church observes believer's baptism by immersion and the Lord's Supper, or Holy Communion, as ordinances.

Meeting regularly every year, the convention's voting membership includes international officers and licensed ministers.

In addition to overseeing the Church's activities, the board of directors appoints officers and is responsible for licensing and ordaining ministers.

[51] In 2013, under Glenn Burris Jr.'s leadership, the church lost $2 million in a failed investment of a Broadway play based on the life of Aimee Semple McPherson.