And they are singing a SHIR CHADASH (TEHILLIM 96:1) saying, Worthy art thou to take the sefer (book) and to open the chotamot (seals) of it, because you were slain and with your dahm [kapporah] you paid the price for the Geulah [VAYIKRA 25:50-51] redemption and purchased ones for Hashem from every mishpochah (family) and lashon (tongue) and am (people) and goy (nation), [TEHILLIM 40:3; 98:1; YESHAYAH 42:10]