Isaiah Gabriel Caldwell was born on November 19, 2018, to Paul Caldwell and Christina Caldwell. He was the couple's eighth child, and they went on to have one more child after him.
Isaiah's family used to live in Woodbridge, Virginia, where his father was a pastor at Heritage Baptist Church. In 2008, his father was sent by Baptist International Missions, Inc. to plant a church in Fayetteville, Arkansas. Isaiah has lived there his whole life.
Isaiah will be homeschooled alongside his siblings.