It is written: "And the work of the Righteousness One will be peace, and the service of Righteousness One will be quietness and assurance forever" (Isa. 32:17). Note that it is the “work” (singular) of righteousness that is in view here – not the “works” (plural) of righteousness that we might perform (Titus 3:5). In other words, it is the work of the LORD alone, that is, the righteousness and glory of the Messiah, blessed be He, that gives us true peace (Psalm 37:39). Likewise the “service of righteousness” refers to the singular “avodah” of the great High Priest "after the order of Malki-Tzedek," which is the eternal service of intercession established by the inviolable will and counsel of Almighty God (Heb. 7:20-21). This avodah does not refer to acts of service performed by human beings in their religious ceremonies (i.e., the Levitical priesthood with its various forms of sacrificial worship), but rather the perfect act of service and sacrifice of Yeshua given upon the cross -- the everlasting atonement and eternal redemption secured by the greater priesthood of Yeshua (Heb. 9:12). “For our sake He made him to be sin who knew no sin, so that in him we might become the righteousness of God.” Only God through Yeshua can give us true inner peace and security forever; only Yeshua gives us peace with God. [Hebrew for Christians]