Genesis 14:7

And they returned, and came to the place where was rendered the judgment of Mosheh the prophet, to the fountain of the waters of Strife, which is Requam. And they smote all the fields of the Amalkaee, and also the Emoraee, who dwelt in En-gedi.

TO EIN MISHPAT, WHICH IS KADESH. It is named [Ein Mishpat, meaning, “the Well of Judgment”] on account of a future event, for Moses and Aaron will be judged because of what will occur at that fountain. Thus the words of Rashi based upon an Agadah., 11. So also in Targum Jonathan here.
But I do not understand this for this Kadesh [mentioned here] is Kadesh-barnea which is in El-paran which is by the desert, and it is from there that the spies were sent by Moses in the second year following the Exodus from Egypt, as it is said, Unto the wilderness of Paran, to Kadesh. And it is further written, And we came to Kadesh-barnea… and ye said, Let us send men before us, and there Israel abode many days., Verse 46. But the Kadesh where the judgment of the righteous ones took place is in the wilderness of Zin, which they entered in the fortieth year following the Exodus, as it is said, And the children of Israel, even the whole congregation, came into the wilderness of Zin in the first month, and the people abode in Kadesh, and finish the chapter. Perhaps the Midrash [mentioned above] alludes only to the name, meaning that a place bearing this name Kadesh will become “the Well of Judgment.”
Now Onkelos said, “the plain of pilug dina,” but I do not know what this means. Perhaps the word pilug is derived from [the Hebrew word used in the following verses]: ‘Plagim’ (Streams) and watercourses; Who ‘pilag’ (hath cleft) a channel for the waterflood. Similarly, in the language of the Sages we find, “Pilgo (The openness) of the sea.” The verse thus states that on that plain there will flow “a fountain of judgment” entering the depth of the case, as this was a fitting plain destined for kings who would sit there to judge all the peoples of these lands.

וישבו ויבאו, after they had first spread out as far as the edge of the desert, they changed direction and marched towards Sodom encountering in their path a place called עין משפט. They were familiar with the history of these places and knew why they bore such names. All of these place-names referred to events that had occurred there at one time or another. There is a Midrash quoted by Rashi in which these names are understood as allusions to events in the future, such as the time when Moses and Aaron would be judged there for hitting the rock instead of speaking to it. At that time the place was called מי מריבה, “waters of the strife.”

שדה העמלקי, [this name supports Rashi’s opinion that the names referred to events in the future, seeing that Amalek, a grandson of Esau, had not been born yet for at least another hundred years. Ed.] When a plain is large enough so that cities can be built in it, it is called שדה. One such example is שדה אדום in Genesis 32,3; another is found in Ruth 1,6 שדה מואב.