1. Zeal, desiring to embrace everything, to persecute, to defend: 2 Corinthians 12:11; 2 Corinthians 9:2; κατά ζῆλος, concerning zeal (in maintaining religion), Philippians 3:6; with the genitive of the object, zeal for, for a person or thing, John 2:17 of Psalm 68:10 In Greek mythology, Zelos or Zelos (/ˈziːləs/; Ancient Greek: Ζῆλος Zēlos, literally «zeal») was the daimon who personified devotion, imitation, zealous rivalry, envy, jealousy and zeal. The English word «zeal» is derived from its name.  Its Roman equivalent was Invidia. While «excessive zeal» can be used to refer to very common and individual cases of excess, fanaticism tends to be reserved for cases where excessive zeal is shared with others and has formed or merged with some kind of dogma; Usually with ideological self-preservation as one of their main foundations. [The root (zē-, «zeal») literally means «hot enough to boil.» It is used metaphorically as «burning rage, love, zeal» (A-S) – that is, burning (in spirit). It can refer to «boiling anger, love, zeal for what is good or bad» (J. Thayer); (figuratively) something very fervent («ardent») as with spiritual zeal to serve the Lord. This root (zē-) is used both negatively («jealousy») and positively («zeal»), depending on the context.
Through zeal knowledge is obtained, through lack of zeal knowledge is lost; May a person who knows this dual path of gain and loss position himself so that knowledge can grow. from 2204; right, warmth, that is, (figuratively) «zeal» (in a favorable sense, zeal; in an unfavorable sense, jealousy, as of a husband (figuratively, of God) or an enemy, wickedness): –imitation, envy (-ing), glowing intellect, indignation, jealousy, zeal. 1a) Zeal, enthusiasm to embrace, pursue, defend everything The KJV translates Strong`s G2205 as zeal (6x), envy (5x), indignation (2x), envy (1x), radiant spirit (1x), jealousy (1x), imitation (1x). Zelus and his siblings were winged executors who stood on the throne of Zeus and were part of his retinue.  The recommended use of force and violence to spread ideology is a common feature of this type of self-preservation; Perhaps in agreement with the «end justifies the means» justification. Synonyms of Trench: xxvi. ζῆλος, φθόνος. A sect of Jews descended from Judas the Gaulonite (Acts 5:37). They refused to pay tribute to the Romans on the grounds that it was a violation of the principle that God was the only king of Israel. They rebelled against the Romans, but were soon dispersed and became a band of lawless thieves or bandits. They were later called Sicarii because they used the Sica, the Roman dagger.
The enthusiasm with which we point out the mistakes of others. Zelus was the son of Pallas (the Titan) and Styx (an Oceanid). His siblings were Nike (victory), Kratos (strength) and Bia (power).  Zelos may also have been identified with Agon, the personification of competition, and was closely associated with Eris. He was sometimes associated with Phthonus, the Daimon of romantic jealousy. Available translations: King James Version, New King James Version, New Living Translation, New International Version, English Standard Version, Christian Standard Bible, New American Standard Bible 2020, New American Standard Bible 1995, Legacy Standard Bible 2021, New English Translation, Revised Standard Version, American Standard Version, Young`s Literal Translation, Darby Translation, Webster`s Bible, Hebrew Names Version, Reina-Valera 1960, Latin Vulgate, Westminster Codex Leningrad, Septuagint, Greek New Testament Morphological and Textus Receptus. Zelus` Roman name was Invidia, which in Latin meant «hostile look.» Because of his relationship with Zelus, his Roman form was sometimes associated with the seven deadly sins. The number of Strong G2205 corresponds to the Greek ζῆλος (zēlos), which appears 17 times in 17 verses in Greek TR.