In Jewish religious texts, the first mention of a dragon-like creature is in the Biblical works of Job (26:13), and Isaiah (27:1) where it is called Nachash Bare'ach, or a "Pole Serpent". This is identified in the Midrash Rabba to Genesis 1:21 as Leviathan from the word Taninim (תנינים) "and God created the great sea-monsters." In modern Hebrew the word Taninim is used for Crocodiles but this is a 20th-century usage unconnected with the original Biblical meaning.
Both of these dragons are made after Lucy Ravenscar’s free pattern “Slightly fierce but friendly dragon”, available here: Lucyravenscar Crochet Creatures. Although my dragons look as if the pattern was named “… and not so friendly dragon”.