Allah states that He is the One, Whom all creations need and seek, the One other than Whom there is no (true) God.

﴿اللَّهُ لاَ إِلَـهَ إِلاَّ هُوَ وَعَلَى اللَّهِ فَلْيَتَوَكَّلِ الْمُؤْمِنُونَ ﴾

(Allah! La ilaha illa Huwa. And in Allah therefore let the believers put their trust.) So, He first informs about Tawhid and its meaning. The implied meaning is to single Him out for deifica- tion, being purely devoted to Him, and relying upon Him, as He said;

﴿رَّبُّ الْمَشْرِقِ وَالْمَغْرِبِ لاَ إِلَـهَ إِلاَّ هُوَ فَاتَّخِذْهُ وَكِيلاً ﴾

(The Lord of the east and the west; La ilaha illa Huwa. So take Him alone as Trustee.) (73:9)

﴿يأَيُّهَا الَّذِينَ ءَامَنُواْ إِنَّ مِنْ أَزْوَجِكُمْ وَأَوْلـدِكُمْ عَدُوّاً لَّكُمْ فَاحْذَرُوهُمْ وَإِن تَعْفُواْ وَتَصْفَحُواْ وَتَغْفِرُواْ فَإِنَّ اللَّهَ غَفُورٌ رَّحِيمٌ - إِنَّمَآ أَمْوَلُكُمْ وَأَوْلَـدُكُمْ فِتْنَةٌ وَاللَّهُ عِنْدَهُ أَجْرٌ عَظِيمٌ - فَاتَّقُواْ اللَّهَ مَا اسْتَطَعْتُمْ وَاسْمَعُواْ وَأَطِيعُواْ وَأَنْفِقُواْ خَيْراً لاًّنفُسِكُمْ وَمَن يُوقَ شُحَّ نَفْسِهِ فَأُوْلَـئِكَ هُمُ الْمُفْلِحُونَ - إِن تُقْرِضُواْ اللَّهَ قَرْضاً حَسَناً يُضَـعِفْهُ لَكُمْ وَيَغْفِرْ لَكُمْ وَاللَّهُ شَكُورٌ حَلِيمٌ - عَـلِمُ الْغَيْبِ وَالشَّهَـدَةِ الْعَزِيزُ الْحَكِيمُ ﴾

(14. O you who believe! Verily, among your wives and your children there are enemies for you; therefore beware of them! But if you pardon (them) and overlook, and forgive, then verily, Allah is Oft-Forgiving, Most Merciful.) (15. Your wealth and your children are only a Fitnah, whereas Allah! With Him is a great reward.) (16. So have Taqwa of Allah as much as you can; listen and obey, and spend in charity; that is better for yourselves. And whosoever is saved from his own greed, then they are the successful ones.) (17. If you lend to Allah a handsome loan, He will double it for you, and will forgive you. And Allah is Shakur, Halim,) (18. All-Knower of the unseen and seen, the Almighty, the All-Wise.)