O you who believe! Be afraid of Allah, and be with those who are true (in words and deeds). 119 It is not for the people of the City and for the Bedouins who dwell around them to stay behind God's Messenger, and to prefer their lives to his; that is because they are smitten neither by thirst, nor fatigue, nor emptiness in the way of God, neither tread they any tread enraging the unbelievers, nor gain any gain from any enemy, but a righteous deed is thereby written to their account; God leaves not to waste the wage of the good-doers. 120 Nor do they spend anything (in Allah's Cause) - small or great - nor cross a valley, but is written to their credit, that Allah may recompense them with the best of what they used to do (i.e. Allah will reward their good deeds according to the reward of their best deeds which they did in the most perfect manner). 121 ۞ And it is not for the believers to go forth [to battle] all at once. For there should separate from every division of them a group [remaining] to obtain understanding in the religion and warn their people when they return to them that they might be cautious. 122