Zerah the Cushite is a figure mentioned in the Bible, specifically in the book of 2 Chronicles. He is known for leading an army against King Asa of Judah. Zerah's forces were described as a vast multitude, showcasing the military strength of the Cushites, who were from the region of Cush, located in modern-day Sudan. In the biblical account, Asa sought divine help and prayed for victory. With God's assistance, Asa's army defeated Zerah's forces, which highlights the theme of faith and reliance on divine power in overcoming challenges. This event is significant in the history of Judah and its kings.