اصْبِرْ عَلَى مَا يَقُولُونَ
Be patient of what they say...
They said this by way of mockery and disbelief, so Allah commanded His Messenger to be patient in the face of their insults, and He gave him the glad tidings that his patience would be rewarded with victory and success.
Allah tells us that His servant and Messenger Dawud, peace be upon him, was endued with power
Allah says;
...
وَاذْكُرْ عَبْدَنَا دَاوُودَ ذَا الاْاَيْدِ إِنَّهُ أَوَّابٌ
... And remember Our slave Dawud, endued with Al-Ayd. Verily, he was ever oft-returning in all matters and in repentance.
Al-Ayd means strength in knowledge and action.
Ibn Abbas, may Allah be pleased with him, As-Suddi and Ibn Zayd said,
"Al-Ayd means strength."
Mujahid said,
"Al-Ayd means strength in obedience to Allah."
Qatadah said,
"Dawud, peace be upon him, was given strength in worship and the proper understanding of Islam."
He told us that he, peace be upon him, used to spend a third of the night in prayer, and he fasted for half a lifetime. This was reported in the Two Sahihs, where it is recorded that the Messenger of Allah said;
أَحَبُّ الصَّلَةِ إِلَى اللهِ تَعَالَى صَلَةُ دَاوُدَ وَأَحَبُّ الصِّيَامِ إِلَى اللهِ عَزَّ وَجَلَّ صِيَامُ دَاوُدَ كَانَ يَنَامُ نِصْفَ اللَّيْلِ وَيَقُومُ ثُلُثَهُ وَيَنَامُ سُدُسَهُ وَكَانَ يَصُومُ يَوْمًا وَيُفْطِرُ يَوْمًا وَلَا يَفِرُّ إِذَا لَاقَى وَأَنَّهُ كَانَ أَوَّابًا
The most beloved of prayer to Allah is the prayer of Dawud, and the most beloved of fasting to Allah is the fasting of Dawud. He used to sleep for half of the night, stand in prayer for a third of the night, then sleep for a sixth of the night, and he used to fast alternate days. He never fled from the battlefield, and he always turned to Allah.
which means that he turned to Allah with regard to all of his affairs.