3 Preface وَالسّابِحاتِ سَبحًاYusuf AliAnd by those who glide along (on errands of mercy),1At all times are errands of mercy and blessings and errands of justice, which the angels are prompt to execute by order of God. There are three features of this, thus giving the third, fourth, and fifth points. (3) Their movement is compared to that of gliding or swimming (sabhan). In 21:33 this verb is applied to the motion of the celestial bodies: they all “swim along, each in its rounded course”. Cf. Shakespeare, Merchant of Venice : “There’s not an orb which thou behold'st, But in his motion life and angel sings, Still quiring to the young-eyed cherubims”. (4) In hurrying on their errands angels press forth as in a race. (5) And thus they promptly execute the orders of their Lord (Cf. 35:1).