NoDictionaries   Text notes for  
... domuum accedant. ius iurandum perinde aestimandum quam si Iovem...

Cf. Lewis & Short II s.v. "perinde": With quam si, the same as if (postAug.): “jusjurandum perinde aestimandum, quam si Jovem fefellisset,” Tac. A. 1, 73. So, "an oath should be judged/valued the same as if he had deceived Jupiter...."