‏ Genesis 18:4

wash your feet In those ancient times, shoes such as ours, were not in use; and the foot was protected only with sandals or soles, fastened round the foot with straps. It was, therefore, not only necessary from motives of cleanliness, but also a very great refreshment, in so hot a country, to get the feet washed at the end of a day's journey; and this is the first thing that Abraham proposes. Gen 19:2, Gen 24:32, Gen 43:24; 1Sam 25:41; Luke 7:44; John 13:5-15; 1Tim 5:10

tree Rest in the shade was the second requisite for the refreshment of a weary traveller.

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