Greg Laurie is the senior pastor of Harvest Christian Fellowship in Riverside, California and Harvest Orange County in Irvine, California. He began his pastoral ministry at the age of 19 by leading a Bible study of 30 people. Since then, God has transformed that small group into a church of some 15,000 people. Today, Harvest is one of the largest churches in America, and consistently ranks among the most influential churches in the country.

In 1990, Laurie began holding large-scale public evangelistic events called Harvest Crusades. Since that time, more than 5,609,000 people have attended Harvest Crusades events around the United States, ranging from the annual event at Angel Stadium in Anaheim to Madison Square Garden in New York City. In 2012, Laurie launched Harvest America, a nationwide event using the internet to simulcast live HD video to thousands of locations across the country. With an unprecedented 306,000 Americans in live attendance, Harvest America ranks among the largest presentations of the gospel in U.S. history. Harvest Crusades have also been held internationally in Canada, Australia, and New Zealand. More importantly, more than 476,200 people have made professions of faith through these outreaches.