From the beginning, time was divided into weeks, each consisting of six days of working and one of
rest (
Gen. 2:2, 3; 7:10; 8:10, 12; 29:28). The references to this division of days becomes afterwards more frequent (
Ex. 34:22;
Lev. 12:5;
Num. 28:26;
Deut. 16:16;
2 Chr. 8:13;
Jer. 5:24;
Dan. 9:24-27; 10:2, 3). It has been found to exist among almost all nations.