of Shur] A part of the great wildernesse, having the particular name of Shur, the same is called Eth, Numbers 33:7. and Etham, and is said to be a desart tract of ground bordering on both parts of the Red Sea, in respect of which extent, Shur might be a part of narrower or shorter compasse. Marah] Or, bitternesse. What name soever the place had before, for the bitternesse of it, now Moses gave it this name, answerable to the nature of it; that they might not be too much puffed up with their prevailing over the Egyptians, God mingleth his favours with afflictions; after their joyfull melodie of songs and instruments of musicke, they are exercised, first, with thirst, and then their thirst is tortured with bitter water.