In the Koran there is of course no free will for the slaves of Muhammad. Al-Lah or Hub'Al wants slaves. He will choose who goes to the paradise and who will enter Hell-fire. This negation of free-will destroys the premise of a free society and of civilization itself. Slavery is not a religious theological attribute but simply the expression of a cult.

This Sura is called 'The Confederates', who were Muhammad's brigands propelling the cult into Jihad, war, enslavement, violence and destruction. Exalted indeed. As reviewed previously; 'What prophet of a theology, is also not a leader of war, pillage, plunder, slave trading, and rape? Surely Zoroaster and Christ did the same?'

Sura 33 has some common themes that one finds throughout the Koran.  First, submit yourself like a slave, to the 'one' or ilah, represented by the 'great man' Muhammad. The 'one or Lord' named ilah is the only free-will force in the universe. Further not to follow his chief spokesman's book named Recital, and respect and never question he totalitarian aspect of Muhammad's command, is of course to 'sin' and all sinners will be punished on Judgement Day.  Second, even more importantly Muhammad, and earlier Moslems especially the Quraish Arabs, are superior to later Moslems. The Muhammadan cult is thus a hierarchy of command and control, and quite fatalistic to a fantastic degree:   

"It is also hierarchic. Mohammed and friends happen to be 'better' than later Muslims. The Koran says so, “The Prophet is closer to the Believers than their own selves, and his wives are their mothers. Blood-relations among each other have closer personal ties, in the Decree of Allah, than (the Brotherhood of) Believers and Muhaijirs:...”[33:6]

Muhammad is or was, simply the most important human in the world – at least according to Muhammad's creation the monotheistic i-Lah or Lord. What can a mere human be in comparison to the great Muhammad? Nothing more than a grovelling, insipid, self-loathing slave of course. Sura 33 makes it clear that slavery is a vital part of Islam.  For example Muhammad and his sex-slaves [what 'religious prophet' does not have a harem?], and Al-Lah's soothing reassurance that Muhammad's harem and slaves will obey the great man:

033:050 URL O Prophet (Muhammad SAW)! Verily, We have made lawful to you your wives, to whom you have paid their Mahr (bridal money given by the husband to his wife at the time of marriage), and those (captives or slaves) whom your right hand possesses - whom Allah has given to you, and the daughters of your 'Amm (paternal uncles) and the daughters of your 'Ammah (paternal aunts) and the daughters of your Khal (maternal uncles) and the daughters of your Khalah (maternal aunts) who migrated (from Makkah) with you, and a believing woman if she offers herself to the Prophet, and the Prophet wishes to marry her; a privilege for you only, not for the (rest of) the believers. Indeed We know what We have enjoined upon them about their wives and those (captives or slaves) whom their right hands possess, - in order that there should be no difficulty on you. And Allah is Ever OftForgiving, Most Merciful.

When Muhammad wanted to have sex with his manumitted Moslem slave Zaid, the great Al-Lah was ready with yet another convenient revelation:

033:037 URL And (remember) when you said to him (Zaid bin Harithah the freedslave of the Prophet SAW) on whom Allah has bestowed Grace (by guiding him to Islam) and you (O Muhammad SAW too) have done favour (by manumitting him) "Keep your wife to yourself, and fear Allah." But you did hide in yourself (i.e. what Allah has already made known to you that He will give her to you in marriage) that which Allah will make manifest, you did fear the people (i.e., Muhammad SAW married the divorced wife of his manumitted slave) whereas Allah had a better right that you should fear Him. So when Zaid had accomplished his desire from her (i.e. divorced her), We gave her to you in marriage, so that (in future) there may be no difficulty to the believers in respect of (the marriage of) the wives of their adopted sons when the latter have no desire to keep them (i.e. they have divorced them). And Allah's Command must be fulfilled.

Moslem men should be a little chary in their accumulation of sex-slaves and wives [but only a little]:

033:052 URL It is not lawful for you (to marry other) women after this, nor to change them for other wives even though their beauty attracts you, except those (captives or slaves) whom your right hand possesses. And Allah is Ever a Watcher over all things.

Moslem slaves should be treated as part of the cult of Al-Lah:

033:005 URL Call them (adopted sons) by (the names of) their fathers, that is more just with Allah. But if you know not their father's (names, call them) your brothers in faith and Mawalikum (your freed slaves). And there is no sin on you if you make a mistake therein, except in regard to what your hearts deliberately intend. And Allah is Ever OftForgiving, Most Merciful.

Heart-warming.

Slavery is as endemic and important a part of Moslem theology as is violence and Jihad. The two go together in fact, as any reading of Islamic history will reveal. The multi-cult and Moslem cult have never answered a simple question: since when does violence and slavery denote a religion?