[Pooya/Ali Commentary 98:3] Qayyimmah means straight, definite, permanent as opposed to crooked and transitory. See Bara-at: 36 and Yusuf: 40. Through the Quran Allah has revealed the supreme law to be followed by mankind for ever. It confirms the law given to the prophets of Allah from Adam to Musa and Isa; and with decisive additions and amendments serves the purpose of regulating the individual and collective behaviours of man in all times till the day of judgement.