All four gospels use the quote from Septuagint Isaiah: it is in Luke in , Matthew in , and John in . This section of Isaiah is about the return journey home from the Babylonian captivity and was a passage Jews often used as a way of expressing the help of God. Isaiah probably uses this passage symbolically to describe moral cleansing and renewal. Thus John is linked to Isaiah as well and once again Mark equates the lord of this passage, Yahweh, with Jesus.