First of all, the highest degree of truth is to believe to Allah for what He is in Himself. 
Thanks Him for that is largely enough.
     
If, however, we have not yet reached this level of gratitude (given its abstract side of Allah Himself) we must find out about our Lover's legislations which therefore constitute the 2nd level of His goodness.
Examples:

     
And [recall] when Moses prayed for water for his people, so We said, "Strike with your staff the stone." And there gushed forth from it twelve springs, and every people knew its watering place. "Eat and drink from the provision of Allah, and do not commit abuse on the earth, spreading corruption."   وَإِذِ اسْتَسْقَى مُوسَى لِقَوْمِهِ فَقُلْنَا اضْرِب بِّعَصَاكَ الْحَجَرَ فَانفَجَرَتْ مِنْهُ اثْنَتَا عَشْرَةَ عَيْنًا قَدْ عَلِمَ كُلُّ أُنَاسٍ مَّشْرَبَهُمْ كُلُوا وَاشْرَبُوا مِن رِّزْقِ اللَّهِ وَلَا تَعْثَوْا فِي الْأَرْضِ مُفْسِدِينَ

 Sorat Al-Baqara (The Cow chapter) : 60 : سورة البقرة  

      

     
Then she brought him to her people, carrying him. They said, "O Mary, you have certainly done a thing unprecedented.   فَأَتَتْ بِهِ قَوْمَهَا تَحْمِلُهُ قَالُوا يَا مَرْيَمُ لَقَدْ جِئْتِ شَيْئًا فَرِيًّا
     
O sister of Aaron, your father was not a man of evil, nor was your mother unchaste."   يَا أُخْتَ هَارُونَ مَا كَانَ أَبُوكِ امْرَأَ سَوْءٍ وَمَا كَانَتْ أُمُّكِ بَغِيًّا
     
So she pointed to him. They said, "How can we speak to one who is in the cradle a child?"   فَأَشَارَتْ إِلَيْهِ قَالُوا كَيْفَ نُكَلِّمُ مَن كَانَ فِي الْمَهْدِ صَبِيًّا
     
[Jesus] said, "Indeed, I am the servant of Allah. He has given me the Scripture and made me a prophet.   قَالَ إِنِّي عَبْدُ اللَّهِ آتَانِيَ الْكِتَابَ وَجَعَلَنِي نَبِيًّا
     
And He has made me blessed wherever I am and has enjoined upon me prayer and zakah as long as I remain alive.   وَجَعَلَنِي مُبَارَكًا أَيْنَ مَا كُنتُ وَأَوْصَانِي بِالصَّلَاةِ وَالزَّكَاةِ مَا دُمْتُ حَيًّا
     
And [made me] dutiful to my mother, and He has not made me a wretched tyrant.   وَبَرًّا بِوَالِدَتِي وَلَمْ يَجْعَلْنِي جَبَّارًا شَقِيًّا
     
And peace is on me the day I was born and the day I will die and the day I am raised alive."   وَالسَّلَامُ عَلَيَّ يَوْمَ وُلِدتُّ وَيَوْمَ أَمُوتُ وَيَوْمَ أُبْعَثُ حَيًّا
     
That is Jesus, the son of Mary - the word of truth about which they are in dispute.   ذَلِكَ عِيسَى ابْنُ مَرْيَمَ قَوْلَ الْحَقِّ الَّذِي فِيهِ يَمْتَرُونَ

 Sorat Maryam (Mary chapter) : 34 << 27 :  سورة مريم  

            

     
Those who follow the Messenger, the unlettered prophet, whom they find written in what they have of the Torah and the Gospel, who enjoins upon them what is right and forbids them what is wrong and makes lawful for them the good things and prohibits for them the evil and relieves them of their burden and the shackles which were upon them. So they who have believed in him, honored him, supported him and followed the light which was sent down with him - it is those who will be the successful.   الَّذِينَ يَتَّبِعُونَ الرَّسُولَ النَّبِيَّ الْأُمِّيَّ الَّذِي يَجِدُونَهُ مَكْتُوبًا عِندَهُمْ فِي التَّوْرَاةِ وَالْإِنجِيلِ يَأْمُرُهُم بِالْمَعْرُوفِ وَيَنْهَاهُمْ عَنِ الْمُنكَرِ وَيُحِلُّ لَهُمُ الطَّيِّبَاتِ وَيُحَرِّمُ عَلَيْهِمُ الْخَبَائِثَ وَيَضَعُ عَنْهُمْ إِصْرَهُمْ وَالْأَغْلَالَ الَّتِي كَانَتْ عَلَيْهِمْ فَالَّذِينَ آمَنُوا بِهِ وَعَزَّرُوهُ وَنَصَرُوهُ وَاتَّبَعُوا النُّورَ الَّذِي أُنزِلَ مَعَهُ أُولَئِكَ هُمُ الْمُفْلِحُونَ
     
Say, [O Mohammad], "O mankind, indeed I am the Messenger of Allah to you all, [from Him] to whom belongs the dominion of the heavens and the earth. There is no deity except Him; He gives life and causes death." So believe in Allah and His Messenger, the unlettered prophet, who believes in Allah and His words, and follow him that you may be guided.   قُلْ يَا أَيُّهَا النَّاسُ إِنِّي رَسُولُ اللَّهِ إِلَيْكُمْ جَمِيعًا الَّذِي لَهُ مُلْكُ السَّمَاوَاتِ وَالْأَرْضِ لَا إِلَهَ إِلَّا هُوَ يُحْيِي وَيُمِيتُ فَآمِنُوا بِاللَّهِ وَرَسُولِهِ النَّبِيِّ الْأُمِّيِّ الَّذِي يُؤْمِنُ بِاللَّهِ وَكَلِمَاتِهِ وَاتَّبِعُوهُ لَعَلَّكُمْ تَهْتَدُونَ

 Sorat Al-Aaraf (The Mores chapter) : 158 << 157 :  سورة الأعراف  

 

If, despite the benefits of His legislations, people still insist on being among those who "fed your goodness and prevented your thanks.", Allah intervenes, in this time, as a Doctor with His scientific truths since He is: "... Lord of the worlds".