Week
Easton’s Bible Dictionary
Week: From the beginning, time was divided into weeks, each consisting of six days of working and one of rest (Genesis 2:2,3; 7:10; 8:10,12; 29:28). The references to this division of days becomes afterwards more frequent (Exodus 34:22; Leviticus 12:5; Numbers 28:26; Deuteronomy 16:16; 2 Chronicles 8:13; Jeremiah 5:24; Daniel 9:24-27; 10:2,3). It has been found to exist among almost all nations.