No, it has always been understood that way. In fact, anyone who puts themselves under the Mosaic Law will be condemned (Gal 3:10-12; 5:1-4). The New Testament is specific about the Old Covenant being obsolete (2 Cor 3:6-14; Hebrews 7:18; 8:7-13; 10:9).
Unlike Christianity, Islam condones killing all who do not submit to Allah:
Qur'an:9:88 "The Messenger and those who believe with him, strive hard and fight with their wealth and lives in Allah's Cause."
Qur'an:9:5 "Fight and kill the disbelievers wherever you find them, take them captive, harass them, lie in wait and ambush them using every stratagem of war."
Qur'an:9:112 "The Believers fight in Allah's Cause, they slay and are slain, kill and are killed."
Qur'an:9:29 "Fight those who do not believe until they all surrender, paying the protective tax in submission."
Ishaq:325 "Muslims, fight in Allah's Cause. Stand firm and you will prosper. Help the Prophet, obey him, give him your allegiance, and your religion will be victorious."
Qur'an:8:39 "Fight them until all opposition ends and all submit to Allah."
Qur'an:8:39 "So fight them until there is no more Fitnah (disbelief [non-Muslims]) and all submit to the religion of Allah alone (in the whole world)."
Religion of peace? I think not.
Not all Muslims kill non-believers, but those who do are not acting against the Islamic faith.
[
9.88] But the Apostle and those who believe with him strive hard with their property and their persons; and these it is who shall have the good things and these it is who shall be successful.
**Nothing about fighting
[
9.5] So when the sacred months have passed away, then slay the idolaters wherever you find them, and take them captives and besiege them and lie in wait for them in every ambush,
then if they repent and keep up prayer and pay the poor-rate, leave their way free to them; surely Allah is Forgiving, Merciful. **Edited that part out, I guess.
[
9.6]
And if one of the idolaters seek protection from you, grant him protection till he hears the word of Allah, then make him attain his place of safety; this is because they are a people who do not know. **Granting protection even to idolators??!?
[
9.112] They who turn (to Allah), who serve (Him), who praise (Him), who fast, who bow down, who prostrate themselves,
who enjoin what is good and forbid what is evil, and who keep the limits of Allah; and give good news to the believers.
*Killing and being slain??!?
[
9.29] Fight those who do not believe in Allah, nor in the latter day, nor do they prohibit what Allah and His Apostle have prohibited, nor follow the religion of truth, out of those who have been given the Book, until they pay the tax in acknowledgment of superiority and they are in a state of subjection.
*Pretty close
[
8.39] And fight with them until there is
no more persecution and religion should be only for Allah;
but if they desist, then surely Allah sees what they do. *FIghting with them seems more like attempts at arguments..not fighting with weapons, eh
http://quod.lib.umich.edu/k/koran/browse.html
Perhaps it is you who should verify where your quotes are coming from and who's twisting which holy book.