The earth is not flat. It is round, like a ball. Proper Biblical interpretation supports this and observational science proves it. The recent swell of flat-earth believers all derive from persuasive-sounding YouTube videos—not science or the Bible. For a balanced review of this topic, see “Does the Bible Teach That the Earth Is Flat?” by astronomer Danny Faulkner.[i]
[i] Dr. Danny Faulkner, “Does the Bible Teach That the Earth Is Flat?” April 4, 2017 https://answersingenesis.org/astronomy/earth/does-bible-teach-earth-flat/ (November 5, 2018).