The term "dinosaur" was derived in 1841 from the Greek deinos (terrible) and sauros (lizard). Therefore, it is not found in the original text of the Bible. However, the Bible does mention mysterious, large and powerful creatures. These creatures are often referred to as "tanniyn," "leviathan" or “behemoth” in the Old Testament. Tanniyn, translated variously as “sea monster,” “sea serpent,” or “dragon,” may have been some sort of giant reptile. They are mentioned nearly thirty times in the Old Testament (e.g, Psalm 74:13; Isaiah 27:1; Jeremiah 51:34). Leviathan, a large, fierce, sea creature, is mentioned six times, in Job 3:8; 41; Psalm 74:14; 104-25-26; and Isaiah 27:1. Behemoth, some kind of large land creature that dwells by the water, is described in Job 40:15-24. The concept of sea monsters like leviathan and tannin had a significant impact on Jewish thought and literature. They served as symbols of God’s power and authority, as well as reminders of the dangers and uncertainties of the natural world. While the Bible does not provide direct evidence of dinosaurs, it contains descriptions of giant, ancient creatures that may have been dinosaurs or similar beasts.
Nearly every ancient civilization has left some sort of art depicting giant reptilian creatures and nearly every culture has a myth about dragons: serpent-like creatures with wings. Ancient historians described dragons as real, living creatures, right alongside descriptions of other more familiar creatures. Petroglyphs and clay figurines found in North America resemble modern depictions of dinosaurs. Rock carvings in South America depict images of creatures resembling Triceratops, Diplodocus, and Tyrannosaurus Rex. Roman mosaics, Mayan pottery, and Babylonian city walls all testify to man’s trans-cultural memories of these creatures. The vast number of dragon and dinosaur descriptions, and the similarities of those descriptions across geographic space and historical time, may be best explained by genuine dinosaur encounters. Many different cultures have similar dragon legends that they could not get from just viewing dinosaur fossils.
If God made all land-living animals on day six of Creation, along with Adam and Eve, then we would expect to find ancient stories and art that connect humans and dinosaurs living at the same time. There is no need to explain away descriptions of creatures that sound like dragons and dinosaurs. If a longer time scale is true, including some form of evolution, there is no obvious explanation for the dragon legends that span the globe and the centuries. Ancient depictions and descriptions must be explained to avoid the idea that humans and dragons/dinosaur-like reptiles coexisted. It’s possible, according to the Bible, that humans lived on the Earth with huge reptiles that are now extinct. Under this interpretation, the ancients often called them dragons, amd modern people call them dinosaurs.