@Embodied: As far as I understand, Brahman and Brahma (or more accurately Maha Brahma) are the same.
Of course the Buddha has talked about them. This is the same Baka Brahma mentioned in the Brahmanimantanika Sutta; see # 12 in “Anidassana Viññāṇa – What It Really Means“.
Those Brahmas (and ancient Hindu yogis) thought that life in the Brahma realm is forever. So, they consider getting to that Brahma realm via jhanas is the same as attaining Nirvana (Sanskrit word for Nibbana) or the “deathless state”.
That is because they all do not have the capability to see past lives beyond the lifetime of that Brahma realm.