Śatapatha Brāhmaṇa ("of a hundred paths") 1.3.5.16

1.3.5.16

tā vai saṃtatā avyavacinnā anvāha | saṃvatsarasyaivaitadahorātrāṇi saṃtanoti tānīmāni saṃvatsarasyāhorātrāṇi saṃtatānyavyavacinnāni pariplavante dviṣata u caivaitadbhrātṛvyāya nopasthānaṃ karotyupasthānaṃ ha kuryādyadasaṃtatāanubrūyāttasmādvai saṃtatā avyavacinnā anvāha

He recites them in a continuous, uninterrupted way: thereby he makes the days and nights of the year continuous, and in a continuous, uninterrupted way revolve those days and nights of the year. And in this way he gives no access to the spiteful enemy; but access he would indeed give, if he were to recite them discontinuously: he therefore recites in a continuous, uninterrupted way.