Allah (swt) swears by His Glorious, Most Honorable Self, as well as He (swt) swears by whatever He wills:

 وَالذَّارِيَاتِ ذَرْوًا

(By those [winds] scattering [dust] dispersing) (Ath-Thariyat: 1)

 وَالْفَجْرِ % وَلَيَالٍ عَشْرٍ % وَالشَّفْعِ وَالْوَتْرِ % وَاللَّيْلِ إِذَا يَسْرِ

(By the dawn % And [by] ten nights % And [by] the even [number] and the odd % And [by] the night when it passes,) (Al-Fajr: 1-4)

But we are not entitled to swear except by Allah (swt) alone.

(… لَا يُؤْمِنُونَ حَتَّىٰ يُحَكِّمُوكَ فِيمَا شَجَرَ بَيْنَهُمْ …) (…they will not [truly] believe until they make you, [O Muhammad], judge concerning that over which they dispute among themselves …): Allah (swt) relates attaining the faith with referring to the Messenger for judgment in all matters. As known faith is to believe in Allah, His Angels, His Books, His Messengers, the Last Day and the divine decree, both good and bad, but how does this faith is applied? This is by referring to the Prophet (saws) in all the matters. When there is a disagreement, the person is distressed and angry, but he has to adhere to the rule of the Prophet (saws) and accept it.

( ثُمَّ لَا يَجِدُوا فِي أَنفُسِهِمْ حَرَجًا مِّمَّا قَضَيْتَ وَيُسَلِّمُوا تَسْلِيمًا … ) (…and then find within themselves no discomfort from what you have judged and submit in [full, willing] submission): The relationship with the Prophet (saws) is always continuous, never stops. So, getting out of sin has three conditions, as we mentioned in the previous verse, and attaining faith has three conditions: Make the Prophet (saws) judge in all disputes, accepting the Prophet’s decision with total submission without any rejection, denial or dispute.

In brief, the two verses regulate the believer’s relationship with the Prophet (saws), as it is the means to enter into faith and get out of sin. What is this honour for our Master (saws), our beloved, our intercessor, and the light of our hearts, Muhammad (saws)!!

 وَإِنَّكَ لَعَلَىٰ خُلُقٍ عَظِيمٍ

(And indeed, you are of a great moral character.) (Al-Qalam: 4)

 لَقَدْ جَاءَكُمْ رَسُولٌ مِّنْ أَنفُسِكُمْ عَزِيزٌ عَلَيْهِ مَا عَنِتُّمْ حَرِيصٌ عَلَيْكُم بِالْمُؤْمِنِينَ رَءُوفٌ رَّحِيمٌ

(There has certainly come to you a Messenger from among yourselves. Grievous to him is what you suffer; [he is] concerned over you and to the believers is kind and merciful.) (At-Tawba: 128)