Iota (from Hebrew yod) is the smallest letter in the Greek alphabet, equivalent to the English 'i.' In Matthew 5:18, Jesus declares that 'not an iota, not a dot, will pass from the Law until all is accomplished.' The hyperbole emphasizes Scripture's enduring authority and complete fulfillment in Christ—even the tiniest orthographic mark carries divine weight. Jesus does not abolish the Law but fulfills it down to its minutest detail, validating every jot while transforming how it functions.