creatures of manifestation of these attributes are Imams.Through these creatures, men could know His attributes.This is His plan to make Himself known. By verse 2:124, Shia believe that the position of Imamate is not higher than prophethood. Shia believe that Imam is God's Witness for the people, the Gate to God (bāb Allāh) and the Road (sabīl) and the Pillar of His Unity so he should be infallible and chosen by God. Allamah al-Majlisi, a Shia scholar of the Safawid era, states: "The Imams are superior to the prophets (except Muhammad) and the entire creation. The Covenant of the Imams was taken from the prophets, the angels and the entire creation. The major prophets called ulul-‘Azm (Nuh, Ibrahim, Musa and ‘Isa ) attained the status of ulul-‘Azm on account of loving the Imams." Muḥammad al-Bāqir narrates that God chose Ibraham first as a worshipper (ʿabd), then a prophet (nabī), then a messenger (rasūl), then a friend (khalīl) and finally as an Imam over the people. The Imams in many passages of Quran are referred as the Light of God (Nur), His Witnesses among mankind (Shuhada), His Signs (Ayat), those firm in the knowledge (Rasikhun), the vicegerents of God on earth (Khulafa), the gates through which he is approached (Abwab), the heirs of the knowledge of the prophet.The Imam is endowed with the holy spirit (Ruh al-Kuds). Shi'a Twelver believes that five Messengers achieved the rank of Leadership:Nuah, Ibrahim, Musa, Isa, Muhammad Vicegerent (Khalifat Allah) The Imam as vicegerent is the representative of all of God's attributes, whom he manifests. The Imam is God's image and face. It is the highest position for man that is mentioned, (2:30) which causes the angels to prostrate themselves before him (15:30). Khalifah is God's appointee (38:26). As God's best representative and sign, the vicegerent in the best way can contribute to God's goals. So every attribute which God owns by His Essence, the vicegerent also owns by accident. The vicegerent is the epiphany (mazhar) of God's divine names. In fact he is the soul of the universe which can cause ontological changes in it. Mediator Allamah al-Majlisi states that the Imams are mediators between God and humankind and that through their intercession, man can escape the punishment of the last day. In addition to Muhammad's role as intermediate between God and man, he is also a mediator before God on behalf of his followers.