ICHTHUS is the Greek word for FISH. At least four of the apostles were fishermen. Can this be part of the reason that one of the earliest and most prominent Christian symbols was the fish? The Greek word ICHTHUS formed the acrostic: Iesous Christos Theou Uios Soter.
ΙΧΘΥΣ (Ichthys or Ichthus) is a backronym/acrostic for "Ίησοῦς Χριστός, Θεοῦ Υἱός, Σωτήρ", (Iēsous Christos, Theou Uios, Sōtēr), which translates into English as "Jesus Christ, Son of God, Saviour".
- Iota (i) is the first letter of Iēsous (Ἰησοῦς), Greek for "Jesus".
- Chi (ch) is the first letter of Christos (Χριστός), Greek for "anointed".
- Theta (th) is the first letter of Theou (Θεοῦ), Greek for "God's", the genitive case of Θεóς, Theos, Greek for "God".
- Upsilon (y) is the first letter of (h)uios (Υἱός), Greek for "Son".
- Sigma (s) is the first letter of sōtēr (Σωτήρ), Greek for "Savior".
The ichthus as a symbol, consist of two intersecting arcs, the ends of the right side extending beyond the meeting point so as to resemble the profile of a fish. It was used by early Christians as a secret Christian symbol and now known colloquially as the "sign of the fish" or the "Jesus fish".
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