And they are singing a SHIR CHADASH 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 redemption and purchased ones for Hashem from every mishpochah (family) and lashon (tongue) and am (people) and goy (nation),