Decimal system never was commanded by God. Decimal system was commanded by French Revolutionists and other Godless rioters similar to them, that wanted to eradicate Biblical week and its multiples/submultiples. Using (2-segmental) thumb as pointer, and four (3-segmental) main fingers with three intersections between them, one can count on right or left hand in septenary system, because there are seven elements in palm (hand without thumb), such as four (3-segmental) main fingers and three intersections between them, excluding (2-segmental) thumb and asymmetrical intersection between thumb and rest of hand. Thumb is used only as pointer to other fingers while counting. As you see, God integrated in each hand counting and pointing function at once. God commanded us septenary system, because Jews used not only weeks, but too seven-week period called omer, and 343 daynight draconitic/ecliptic year consisted from seven omers. Jews further grouped each seven years into sabbatical, and each seven sabbaticals into jubilee. Daynight was subdivided into seven prayer times called canonical hours in Catholic Church. Additionally, in antiquity for measuring length there was used septenary cubit divided into seven palms (parts of hand without thumb). Because God is perfect and coherent in His plans and thoughts, He never will command two contradictory systems at once. Because to that, God commanded us originally only septenary system. But sinful humans abandoned His perfect commandments and instead of perfect God's septenary system they adopted Godless decimal system (French Revolution against God to make all units derived from 10) and sexagesimal system (satanic revolution against God to make all units derived from 666) for example. These babylonian units are satanic by design, because 24 hours are 6*4, 360 days/degrees are 6*6*10, 60 minutes/seconds/tierces are 6*10, and so on.