Genesis 18:4

Overview - Genesis 18
The Lord appears to Abraham, who entertains angels.
Sarah is reproved for laughing at the promise of a son.
16 The destruction of Sodom is revealed to Abraham.
23 Abraham makes intercession for the inhabitants.
Treasury of Scripture Knowledge

Genesis 18:4  (King James Version)
Let a little water, I pray you, be fetched, and wash your feet, and rest yourselves under the tree:
 


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.
19:2 24:32 43:24 1 Samuel 25:41 ; Luke 7:44 ; John 13:5-15 ; 1 Timothy 5:10

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