In short, Osama bin Laden is motivated to wage Jihad (holy war) based on the texts and teachings of Islam:
Taken together, all these messages assert that the terror al-Qa'ida inflicts upon the West has nothing to do with Western freedoms and everything to do with reciprocal treatment. Moreover, by stating "we have no other option" than to engage in acts of terrorism, bin Ladin clearly implies that terrorism is being relied upon as a last resort out of desperation. Thus al-Qa'ida maintains that there is no correlation between Western freedoms and Islamic terrorism--that the latter is never used simply to suppress the former.
This is not the case when addressing the Saudis. After they wrote to the Americans saying that Islam does not allow coercion in matters of religion, bin Ladin, once again, revealed his true beliefs and ultimate goals. The Saudi intellectuals had declared, "It is not permitted to coerce anyone regarding his religion. Allah Most High said: 'There is no compulsion in religion' [Koran 2:256]. Thus Islam itself does not comport with coercion." (p. 40) After explaining that this verse has to do with matters of the heart and not Islam's destiny to rule the whole world,[12] bin Ladin quotes the Hadith:
Whenever the Messenger of Allah appointed someone as leader of an army or detachment, he would especially exhort him to fear Allah and be good to the Muslims with him. Then he would say: "Attack in the name of Allah and in the path of Allah do battle with whoever rejects Allah. Attack!... If you happen upon your idolatrous enemies, call them to three courses of action. If they respond to any one of these, accept it and stay yourself from them. [1] Call them to Islam: If they respond [i.e., convert], accept this and cease fighting them..... [2] If they refuse to accept Islam, demand of them the jizya: If they respond, accept it and cease fighting them. [3] But if they refuse, seek the aid of Allah and fight them." Thus our talks with the infidel West and our conflict with them ultimately revolve around one issue--one that demands our total support, with power and determination, with one voice--and it is: Does Islam, or does it not, force people by the power of the sword to submit to its authority corporeally if not spiritually? Yes. There are only three choices in Islam: either willing submission; or payment of the jizya, through physical though not spiritual, submission to the authority of Islam; or the sword--for it is not right to let him [an infidel] live. The matter is summed up for every person alive: Either submit, or live under the suzerainty of Islam, or die. [pp. 41-42]
When the Saudi intellectuals wrote: "Man, from his very make-up, is a sacred creation. Thus it is impermissible to transgress against him, no matter what his color, race, or religion." Bin Ladin, after mocking their language for its "UN" tone, wrote extensively:
Now, then, how can you speak about Allah without knowledge? Who told you that transgression against man is impermissible--if he is an infidel? What about Offensive Jihad? Allah Exalted, the Most High, said: "Fight them! Allah will torment them with your hands".... [Koran 9:14] Indeed, these expressions of yours are built upon the principle of equality, as found in the charters of the United Nations, which do not distinguish [among] people, neither by way of religion nor race nor sex. Islam improves; it is not improved.... [p. 38] Furthermore, how can they [intellectuals] claim that we have no right to force a people to change its particular values, when they transgress the bounds of nature? Such are lies. In fact, Muslims are obligated to raid the lands of the infidels, occupy them, and exchange their systems of governance for an Islamic system, barring any practice that contradicts the sharia from being publicly voiced among the people, as was the case at the dawn of Islam....[p. 50] Thus they make claims and speak about Allah without understanding. They say that our sharia does not impose our particular beliefs upon others; this is a false assertion. For it is, in fact, part of our religion to impose our particular beliefs upon others. Whoever doubts this, let him turn to the deeds of the Companions when they raided the lands of the Christians and Omar imposed upon them the conditions of dhimmi[tude]. These conditions involve clothing attire, specific situations, and class distinctions known to ulamaas the pact of Omar,[13] and they are notoriously famous. Let the signatories review them so they know that we are to force people by the power of the sword to [our] particular understandings, customs, and conditions, all in order to induce debasement and humility, just like Allah commanded when he said: "[...]until they pay the jizya by hand, in complete submission and humility." [Koran 9:29] Now, if you are incapable of jihad and placing people into the religion, like the Companions did, your impotence does not mean that it is not a legitimate aspect of the religion. [p. 51]
As for direct support for terrorism, bin Ladin again refers to the Koran:
"Muster against them [infidels] what fighting-men and steeds of war you can, in order to strike terror in the enemy of Allah and your enemy, and others besides them whom you do not know, but Allah knows well." [Koran 8:60] Thus whoever refuses the principle of terror[ism] against the enemy also refuses the commandment of Allah the Exalted, the Most High, and His sharia. The West prepares to defend itself in face of this extremist verse. [p. 54]
The Saudi intellectuals wrote: "Terrorism, according to the universally agreed meaning being used today, is but one of many manifestations of unjust aggression against life and property." Bin Ladin, outraged, responds:
Behold! Today they are agreed to the meaning and definition of "terrorism" as acknowledged and agreed to by the Americans, that is, "unjust aggression against life and property." And such acknowledgment by necessity must apply to and include the Prophet who assaulted the lives, properties, and women of the infidels, who were living in secure and settled cities. As did his Companions after him. Such aggression, as understood by the West, is not justified; nor does such hostility agree with the Western notion of "freedom of religion." Thus our Prophet and his Companions and the righteous forefathers have all now become "terrorists."[14] [p. 58]
Taken together, the above three sections all demonstrate that for al-Qa'ida, hostility and violence towards the West is not merely "reciprocal treatment"--that is, "an eye for an eye"--but rather religious obligation that far transcends any and all notions of "universal justice" and claims to grievances. However, there are two more notable contradictions between what they say to the West and what they affirm to Muslims. Consider the following disparities:
http://www.meforum.org/2043/an-analysis ... -worldview