Targum Jonathan on Numbers
And they removed from Marah, and came to Elim; in Elim were twelve fountains of water for the twelve tribes, and seventy palm trees, answering to the seventy sages; and they encamped there by the waters.
Targum Jerusalem
And they removed from Marah and came to Elim: in Elim were twelve fountains of water, answering to the twelve tribes of Israel, and seventy palm trees, answering to the seventy elders of the Sanhedrin of Israel; and they encamped there.