Targum Jonathan on Exodus
And they came to Elim; and in Elim were twelve fountains of water, a fountain for each tribe; and seventy palm-trees, corresponding with the seventy elders of Israel: and they encamped there by the waters.
Targum Jerusalem
And they came to Elim, where 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.