Śatapatha Brāhmaṇa ("of a hundred paths") 2.3.3.13

2.3.3.13

pūrveṇāhavanīyam parītya | antareṇa gārhapatyaṃ caiti na vai devā manuṣyaṃ vidusta enametadantareṇātiyantaṃ vidurayaṃ vai na idaṃ juhotītyagnirvai pāpmano 'pahantā tāvasyāhavanīyaśca gārhapatyaścāntareṇātiyataḥ pāpmānamapahataḥ so 'pahatapāpmā jyotireva śriyā yaśasā bhavati

[The sacrificer] having gone round the Âhavanîya, (after entering) from the east, passes between (it and) the Gârhapatya (to his seat). For the gods do not know (this) man; but when he now passes by them between (the fires), they know him, and think, 'This is he that now offers to us.' Moreover, Agni (the fire) is the repeller of evil; and these two, the Âhavanîya and Gârhapatya, repel the evil from him who passes between them; and the evil being repelled from him, he becomes a very light in splendour and glory.