Atharva Veda 15.1

Paryāya the first

A Vrātya there was, just going about; he stirred up Prajāpati.

He, Prajāpati, saw in himself gold (suvárṇa); he generated that.

That became one; that became star-marked (lalā́ma); that became great; that became chief; that became bráhman; that became fervor; that became truth; therewith he had progeny.

He increased; he became great; he became the great god (mahādevá).

He compassed the lordship of the gods; he became the Lord (ī́çāna).

He became the sole Vrātya; he took to himself a bow; that was Indra's bow.

Blue its belly, red [its] back.

With the blue he envelops (pra-vṛ) a hostile cousin, with the red he pierces one hating him [—he who knows thus]: so say the theologians (brahmavādín) .