Mahabharata 12.224.21

एतानि शाश्वताँल्लोकान्धारयन्ति सनातनान्एतद्ब्रह्मविदां तात विदितं ब्रह्म शाश्वतम्

etāni śāśvatām̐llokāndhārayanti sanātanānetadbrahmavidāṃ tāta viditaṃ brahma śāśvatam

Our plain-language meaning of this verse is waiting for scholar review.