Pilate said unto them, Ye have a watch: go your way, make it as sure as ye can.
Pilate said unto them, Ye have a watch. The guards had already acted under orders of the Sanhedrim, with Pilate's consent; but probably they were not clear about employing them as a night-watch without Pilate's express authority.
Go your way, make it as sure as ye can, х hoos (G5613) oidate (G1492)] - 'as ye know how,' or in the way ye deem securest. Though there may be no irony in this speech, it evidently insinuated that if the event should be contrary to their wish, it would not be for want of sufficient human appliances to prevent it.