Verse 39

यथाक्रमं स्वभृत्यान्तैर्विप्राद्यैश्च परिच्छदैः ।समं बुभुजिरे भोज्यं वर्णधर्मक्रमोदितम्

In plain words

In due order, together with their retinues -- the brahmins first and their own servants last -- they ate their food together, as prescribed by the ordered sequence of varṇa-dharma.