This Ayah includes ten separate and independent ideas, each of which is a ruling on its own.
They (the scholars) said that there is nothing else like it in the Qur'an, apart from Ayat Al-Kursi (2:255), which also includes ten ideas
فلذلك فادع
So unto this then invite (people),
means, `so call people to this which We have revealed to you and which We enjoined upon all the Prophets before you,' the Prophets of major ways (of Shariah) that were followed, such as the Messengers of strong will, and others.
واستقم كما أمرت
and stand firm as you are commanded,
means, `adhere firmly, you and those who follow you, to the worship of Allah as He has commanded you.'
وﻻ تتبع أهواءهم
and follow not their desires,
means, the desires of the idolators, in the falsehoods that they have invented and fabricated by worshipping idols.
وقل آمنت بما أنزل الله من كتاب
but say: "I believe in whatsoever Allah has sent down of the Book...''
means, `I believe in all the Books that have been revealed from heaven to the Prophets; we do not differentiate between any of them.'
وأمرت ﻻأعدل بينكم
and I am commanded to do justice among you.
means, when judging according to the commands of Allah.
الله ربنا وربكم
Allah is our Lord and your Lord.
means, `He is the One Who is to be worshipped, and there is no true God but He. We affirm this willingly, and even though you do not do so willingly, everyone in the universe prostrates to Him obediently and willingly.'
لنا أعمالنا ولكم أعمالكم
For us our deeds and for you your deeds.
means, `we have nothing to do with you.'
This is like the Ayah:
وإن كذبوك فقل لى عملى ولكم عملكم أنتم برييون مما أعمل وأنا برء مما تعملون
And if they demy you, say: "For me are my deeds and for you are your deeds! You are innocent of what I do, and I am innocent of what you do!'' (10:41)
ﻻ حجة بيننا وبينكم
There is no dispute between us and you.
Mujahid said, "This means, no argument.''
As-Suddi said,
"This was before Ayah of the sword was revealed.''
This fits the context, because this Ayah was revealed in Makkah, and Ayah of the sword (22:39-40) was revealed after the Hijrah.
الله يجمع بيننا
Allah will assemble us (all), (means, on the Day of Resurrection).
This is like the Ayah:
قل يجمع بيننا ربنا ثم يفتح بيننا بالحق وهو الفتاح العليم
Say: "Our Lord will assemble us all together, then He will judge between us with truth. And He is the Just Judge, the All-Knower of the true state of affairs.'' (34:26).
وإليه المصير
and to Him is the final return.
means, the final return on the Day of Reckoning