Say: O my servants who believe! be careful of (your duty to) your Lord; for those who do good in this world is good, and Allah's earth is spacious; only the patient will be paid back their reward in full without measure. 10 Say, [O Muhammad], "Indeed, I have been commanded to worship Allah, [being] sincere to Him in religion. 11 And I am commanded that I shall be the first of those who submit. 12 Say, "I am afraid that for disobeying my Lord I shall suffer the torment of the great day". 13 Say: "I worship God with devotion all-exclusive for Him. 14 so serve what you will apart from Him.' Say: 'Surely the losers are they who lose themselves and their families on the Day of Resurrection; is not that the manifest loss? 15 They will have canopies of fire above them and below them, canopies. By that Allah threatens His servants. O My servants, then fear Me. 16 Those who eschew the serving of idols and turn penitent to God, for them is good tidings! So give thou good tidings to My servants 17 Who hear advice and follow the best thereof. Such are those whom Allah guideth, and such are men of understanding. 18 How can you rescue the one who is destined to suffer the torment? 19 But those who fear their Lord -- for them await lofty chambers, above which are built lofty chambers, underneath which rivers flow -- God's promise; God fails not the tryst. 20 Do you not see that Allah sends down rain from the sky and makes it flow as springs [and rivers] in the earth; then He produces thereby crops of varying colors; then they dry and you see them turned yellow; then He makes them [scattered] debris. Indeed in that is a reminder for those of understanding. 21