In the version of the video containing remarks from the jihad murderer in London today that can be found above, he clearly mentions Surat at-Tawba at the beginning. (Thanks to Kenneth.)
Why has this video been edited to remove his references to the Qur'an?
He says, "Surat at-Tawba through...many, many ayat throughout the Qur'an that...we must fight them as they fight us..."
Surat at-Tawba is the ninth chapter of the Qur'an, and according to Islamic scholars is the last one or one of the last ones to have been revealed that contain doctrinal content -- which means that it takes precedence over the others. Some highlights:
"And when the sacred months have passed, then kill the polytheists wherever you find them and capture them and besiege them and sit in wait for them at every place of ambush. But if they should repent, establish prayer, and give zakah, let them [go] on their way. Indeed, Allah is Forgiving and Merciful." -- 9:5
"Fight them; Allah will punish them by your hands and will disgrace them and give you victory over them and satisfy the breasts of a believing people and remove the fury in the believers' hearts. And Allah turns in forgiveness to whom He wills; and Allah is Knowing and Wise." -- 9:14-15
"Fight those who do not believe in Allah or in the Last Day and who do not consider unlawful what Allah and His Messenger have made unlawful and who do not adopt the religion of truth from those who were given the Scripture - [fight] until they give the jizyah willingly while they are humbled." -- 9:29
"O Prophet, fight against the disbelievers and the hypocrites and be harsh upon them. And their refuge is Hell, and wretched is the destination." -- 9:73
"O you who have believed, fight those adjacent to you of the disbelievers and let them find in you harshness. And know that Allah is with the righteous." -- 9:123