In Vergilium Commentarius
Maurus (Marius) Servius Honoratus
AUGUSTA AD MOENIA augurio consecrata. Hinc paulo post <170> illud est 'tectum augustum, ingens' . Et nisi in augusto loco consilium senatus habere non poterat: unde templum Vestae non fuit augurio consecratum, ne illuc conveniret senatus, ubi erant virgines; nam haec fuerat regia Numae Pompilii: ad atrium autem Vestae conveniebat, quod a templo remotum fuerat.
To the majestic walls consecrated by augury. A little after this (170) is "the house, stately and huge." And the senate could not hold a meeting except in a consecrated place: whence the temple of Vesta was not consecrated by augury, so the senate would not meet there, where there were the virgins; for this had been the house of Numa Pompilius. But it used to meet at the atrium of Vesta, which was separate from the temple.
Translation by Jane W. Crawford, © 2001.