The Hebrew word shabbaton (שַׁבָּתוֹן) is an intensified form of shabbat, denoting a complete, solemn, holy rest. It is used for the weekly Sabbath, the Day of Atonement, the Feast of Trumpets, the Year of Jubilee, and other sacred times requiring total cessation of work. The double emphasis on rest conveys the fullness and holiness of the prescribed cessation.
Shabbaton elevates the Sabbath concept from mere rest to sacred, divine appointment. The most significant use is for Yom Kippur: 'It is a sabbath of solemn rest for you' (Leviticus 16:31) — the one day of complete fasting, confession, and atonement. Hebrews 4 connects the shabbaton rest to the eschatological rest that remains for the people of God — a rest inaugurated but not yet fully realized in Christ. The Jubilee year as shabbaton (Leviticus 25:4) speaks of ultimate liberation from labor and debt, pointing to the New Creation where all toil-cursed labor ceases.