a Book upright qayyiman is a second circumstantial qualifier for added emphasis to warn of to make by this Book the disbelievers fear severe chastisement from Him from God and to bring to the believers who perform righteous deeds the good tidings that theirs will be a fair reward
- 18:22
قَيِّمًا لِيُنْذِرَ بَأْسًا شَدِيدًا مِنْ لَدُنْهُ وَيُبَشِّرَ الْمُؤْمِنِينَ الَّذِينَ يَعْمَلُونَ الصَّالِحَاتِ أَنَّ لَهُمْ أَجْرًا حَسَنًا
Immutable, so that it may warn of a severe punishment from Him; and give happy tidings to those who believe and do the right that there is a better reward (of Paradise) for them,
- common.revelation-Meccan
- common.hizb : 117