By synecdoche (naming the whole for a part), in Jewish sources by the time of the Septuagint, the term "Sabbath" (Greek Sabbaton, Strong's 4521) also came to mean an entire "se'nnight" or seven-day week, the interval between two weekly Sabbaths. Jesus's parable of the Pharisee and the Publican (Luke 18:9–14) describes the Pharisee as fasting "twice a week" (Greek dis tou sabbatou, literally, "Twice of the Sabbath").