A print in the Welcome area

While I've been serving by answering phones in the Welcome Desk area of the SIL campus, I have noticed this print:

 In the desk drawer, I found a bookmark with a reproduction of the print...

... and this information was printed on the back.

What language would He use to speak to each of these?
Their Own.
The Last Supper with Twelve Tribes, Oil on Canvas, 20 ft. x 4.5 ft, by Hyatt Moore
From left to right: Crow of Montana, Berber of North Africa, Masai of Kenya, China, Ecuador, Afghanistan, Jesus, Ethiopia, Tzeltal of Mexico, Canela of Brazil, Papua New Guinea, Salish of British Columbia, Mongolia.
Copyright, 2001. Quality prints available in various sizes. See www.hyattmoore.com

The artist explains the background of the painting at http://www.hyattmoore.com/thelastsupper/
He mentions that this is not a picture of the past "Last Supper" that da Vinci commemorated in his painting, but rather a representation of the coming *last* supper, the wedding supper of the Lamb, where all people, nations, tribes, and tongues will be together (Rev 7:9-10, 19:6-9).