I want to add a very significant note about the placement for the Mark of the Beast, 666. In the Bible, it says that, if you want to buy, sell, or trade during the last half of the Tribulation, the mark must be placed on the back of the right hand or on the forehead.
It is important to understand that Islamic law was written when the Arabs, after a bowel movement, would literally clean themselves with their left hand which is why the left hand is considered to be defiled in Islam. You are not permitted to take food from communal dishes with your left hand or shake hands with others using it. You can only use your right hand to take food from communal dishes and to shake hands with others. It is also important to note that even today all Muslims finalize all deals with a hand shake.
Keeping in mind that 666 is Islam's most holy number and that tattooing it on your left hand would defile the number and get your head cut off. It would only make sense for the Antichrist of the Bible or the Jesus of Islam to put out an order or edict that, if you want to buy, sell, or trade, the mark of Islam must be on the back of your right hand or your forehead to readily identify you as a Muslim for very important Muslim reasons.
First, if the mark of Islam is on your right hand and you reach out to seal a deal with another Muslim, you will both be able to quickly see that you are both Muslims because you will easily see the 666 tattooed on the back of each other's right hands. Tattooing 666 on the back of the right hand conforms with Muslim customs, religion, and law.
Second, it is also important to note that when a Muslim is caught stealing from another Muslim, his hand is cut off and the first hand they cut off is the right hand. So, if you are a Muslim who has had your right hand cut off and want to continue to buy, sell, or trade to survived, you will still have to have the mark of Islam plainly visible to other Muslims or they won't be able to buy, sell, or trade with you. Since you can't put it on your left hand, then the only other place where it would be plainly visible to other Muslims would be on your forehead as was prophesied in the Bible 2,000 years ago.
Therefore, after the Muslims conquer the entire planet during the Tribulation and the Jesus of Islam declares that the mark of Islam, 666, be tattooed on your person for easy identification as a Muslim, the only places he will be able to order it to be displayed will be on the back of your right hand and on your forehead just like the Bible prophesied 600 years before Mohammad.
If you still doubt that the Muslim Caliphate, with its ten rulers (the 10 horns of Daniel's beast), will be the one world government out of Babylon and one world church during the Tribulation, then your eyes must have been shut by God to keep you ignorant because there can't be any other possibility, especially since every aspect of Islam fits the Bible prophesies like skin. During the Tribulation, the Muslim Caliphate WILL conquer the world, WILL be the one world government and not the currently fracturing and failing EU, WILL be the one world church and not the currently faltering Catholic Church with its scandals, and the Jesus of Islam will capture Jerusalem and the Jewish Temple making the Temple his palace and throne room (the Holy of Holies) and will be the one to give the command to destroy the last of God's people. It WILL be the Jesus of Islam and his Muslim cleric (the Bible's false prophet) who will meet with the Jesus of the Bible in the Valley of Meggido for the Battle of Armageddon at the end of the Tribulation.....in the increasingly near future. A few of you will live to see all of this within the next 30 to 40 years.
Islam will suffer a severe set back from the Battle of Ezekiel 38 & 39 but will learn from the set back, rebuilt to be the greatest power in the history of the world in just about 15 to 20 years; taking their time to do it right under the new Caliphate based out of Babylon, and will be the fulfillment of Biblical prophesy concerning the Tribulation. There is no other possibility.
Please make sure that you and your's (friends and relatives) accept Christ as your savior and beat it out of here in the Rapture because you don't want you or your's to go into the Tribulation. The Muslims will slaughter half of the global population in conquering the entire planet, except for Israel, in just the first three and a half years of the 7 year Tribulation. It will be the most horrific slaughter in the history of the entire planet. ACCEPT CHRIST NOW!!!