▁[ Re chts quelle ] ▁... ▁All ▁practical ▁principles ▁of ▁right ▁must ▁contain ▁rig orous ▁truth ▁... ▁This ▁is ▁because ▁such ▁exceptions ▁would ▁destroy ▁the ▁univers ality ▁on ▁account ▁of ▁which ▁alone ▁they ▁bear ▁the ▁name ▁of ▁principles ." ▁ ▁Div ine ▁command ▁theory ▁ ▁Although ▁not ▁all ▁de ont olog ists ▁are ▁religious , ▁some ▁believe ▁in ▁the ▁' div ine ▁command ▁theory ', ▁which ▁is ▁actually ▁a ▁cluster ▁of ▁related ▁theories ▁which ▁essentially ▁state ▁that ▁an ▁action ▁is ▁right ▁if ▁God ▁has ▁decre ed ▁that ▁it ▁is ▁right . ▁According ▁to ▁Ralph ▁C ud worth , ▁an ▁English ▁phil os opher , ▁William ▁of ▁O ck ham , ▁René ▁Des cart es , ▁and ▁eigh teenth - century ▁Cal vin ists ▁all ▁accepted ▁various ▁versions ▁of ▁this ▁moral ▁theory , ▁as ▁they ▁all ▁held ▁that ▁moral ▁oblig ations ▁arise ▁from ▁God ' s ▁commands . ▁The ▁Div ine ▁Command ▁Theory ▁is ▁a ▁form ▁of ▁de ont ology ▁because , ▁according ▁to ▁it , ▁the ▁right ness ▁of ▁any ▁action ▁depends ▁upon ▁that ▁action ▁being ▁performed ▁because ▁it ▁is ▁a ▁duty , ▁not ▁because ▁of ▁any ▁good ▁consequences ▁ar ising ▁from ▁that ▁action . ▁If ▁God ▁commands ▁people ▁not ▁to ▁work ▁on ▁S abb ath , ▁then ▁people ▁act ▁right ly ▁if ▁they ▁do ▁not ▁work ▁on ▁S abb ath ▁because ▁God ▁has ▁commanded ▁that ▁they ▁do ▁not ▁do ▁so . ▁If ▁they ▁do ▁not ▁work ▁on ▁S abb ath ▁because ▁they ▁are ▁lazy , ▁then ▁their ▁action ▁is ▁not ▁truly ▁speaking