O LORD, truly I am your servant; I am your servant, and the son of your handmaid: you have loosed my bonds.
Read Chapter 116
Augustine of Hippo
11. Let therefore the slave purchased at so great a price confess his condition, and say, "Behold, O Lord, how that I am Thy servant: "I am Thy servant, and the son of Thine handmaid" (ver. 16). ...This, therefore, is the son of the heavenly Jerusalem, which is above, the free mother of us all. And free indeed from sin she is, but the handmaid of righteousness; to whose sons still pilgrims it is said, "Ye have been called unto liberty;" and again he maketh them servants, when he saith, "but by love serve one another." ...Let therefore that servant say unto God, Many call themselves martyrs, many Thy servants, because they hold Thy Name in various heresies and errors; but since they are beside Thy Church, they are not the children of Thy handmaid. But "I am Thy servant, and the son of Thine handmaid." "Thou hast broken my bonds asunder."