When Muslims suffered defeat in battle at Uhud and some of them were killed, Shaytan shouted, "Muhammad ﷺ has been killed." Ibn Qami'ah went back to the idolators and claimed, "I have killed Muhammad." Some Muslims believed this rumor and thought that the Messenger of Allah ﷺ had been killed, claiming that this could happen, for Allah narrated that this occurred to many Prophets before. Therefore, the Muslims' resolve was weakened and they did not actively participate in battle. This is why Allah sent down to His Messenger His statement,
Connected with previous verses where Muslims were admonished for some of their shortcomings during the battle of Uhud, the present verses cite examples set by men of Allah from earlier communities showing how steadfast they were on the battlefield, something which should be emulated by the present addressees.
The explanation of some words:
1. رِبِّيُّونَ Ribbiyun): a derivation from Rabb (رَبّ ) like Rabbani (رَبّانی) meaning 'of the رَبّ Rabb or Lord' which has been rendered as men of Allah in the present translation. According to Ruh al-Ma‘ani, here the use of the vowel sound 'i' in place of 'a' is irregular. Some commentators take رِبِّيُّونَ 'Ribbiyun': to mean 'many groups'. In their view, this is derived from the word, 'Ribbah' (رَبّہ) which means 'the group'. Now, as to who is meant here by رِبِّيُّونَ 'Ribbiyun': (men of Allah), it has been reported from Sayyidna ` Abdullah ibn ` Abbas ؓ and Iiasan al-Basri that this refers to ` ulama' (religious scholars) and 'fuqaha' (juriconsults). (Ruh a1-Ma` ani).
People who realize these truths are the true followers of the path of God. If God wills, they are invested with honour and power in this world as well, and so far as the eternal and superior rewards of the Hereafter are concerned, these too are reserved for them. However, this status is earned only when the believer has passed all the tests, when his eyes are set on God, even when all the apparent supports have crumbled away. His life being at risk fails to depress him. He does not retreat even when he sees the destruction of his worldly position before his very eyes. He regards any loss he incurs as the result of his own shortcomings. He holds himself responsible for it, and seeks forgiveness from God. When he is blessed with some good thing, he knows that it comes from God and he is thankful to Him. Such people become deserving candidates for all kinds of blessings showered upon them by their Creator. They who have thus discovered God are the most precious of souls and have themselves wholeheartedly enrolled in God’s plan. Remaining united at crucial moments and adhering strictly and with patience to the truth are the qualities that make believers deserving of divine succour.
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.