It is from the The Complete Works of Swami Vivekananda/Volume 3..
While quoting the statement from Abrahamic Text "In the beginning was the Word and the Word was with God ", Swami said that the Word is the Vedas, and Sanskrit is the language of God. God spoke once. He spoke in Sanskrit.
The following is the extract.
There was already in India a vast ...
(excerpt from http://gloriouskrishna.blogspot.com/2011/11/taraka-brahma-nama-holy-name-which.html)
Taraka Brahma Nama (The Holy Name which Delivers All)
‘taraka-brahma-nama’ which means this transcendental mantra is the deliverer of one and all.
narayana para veda
narayana para muktir
The purport behind it is -- ...
It was mentioned in the description part of the video
It is a form of Vedic jugalbandi called Suresha Paddhati. It is a
method of reciting Samhita and other Vikrutis, like Ghana Patha from
more than 1 Veda. In this case Rig Veda and Krishna Yajur Veda are
recited immediately and simultaneously, to highlight the difference in
svara, pada, the place ...