Allah (Glorified be He) mentions, while quoting His Prophet Nuh (peace be upon him), some of His Attributes (Glorified and Exalted be He); that it is He Who gave them increase in wealth and favors, so He truly deserves to be worshiped, obeyed, and glorified.
Concerning Hud (peace be upon him) and his people, Allah says in Surah AlShu`ara':
'Ad (people) belied the Messengers. When their brother Hûd said to them: "Will you not fear Allâh and obey Him? Verily I am a trustworthy Messenger to you. So fear Allâh, keep your duty to Him, and obey me. No reward do I ask of you for it (my Message of Islâmic Monotheism); my reward is only from the Lord of the 'Alamîn (mankind, jinn, and all that exists). Do you build high palaces on every high place, while you do not live in them? And do you get for yourselves palaces (fine buildings) as if you will live therein for ever. And when you seize (somebody), seize you (him) as tyrants? So fear Allâh, keep your duty to Him, and obey me. And keep your duty to Him, fear Him Who has aided you with all (good things) that you know. He has aided you with cattle and children. And gardens and springs. Verily, I fear for you the torment of a Great Day."
Allah (Glorified and Exalted be He) pointed out through His Prophet Hud (peace be upon him) many of the favors He bestowed on them. He is the Lord of All people, so they should submit to Him, obey and believe His messenger. Nevertheless, they refused in arrogance, so Allah sent against them the barren wind as punishment.
With regard to Salih (peace be upon him), Allah (Glorified and Exalted be He) says:
Thamûd (people) belied the Messengers. When their brother Sâlih said to them: "Will you not fear Allâh and obey Him? I am a trustworthy Messenger to you. So fear Allâh, keep your duty to Him, and obey me. No reward do I ask of you for it (my Message of Islâmic Monotheism); my reward is only from the Lord of the 'Alamîn (mankind, jinn and all that exists). Will you be left secure in that which you have here? In gardens and springs. And green crops (fields) and datepalms with soft spadix. And you hew out in the mountains, houses with great skill. So fear Allâh, keep your duty to Him, and obey me. And follow not the command of AlMusrifûn [i.e. their chiefs: leaders who were polytheists, criminals and sinners], Who make mischief in the land, and reform not." etc.