It very simple, the Bible itself gives you the answer. Without the 'mark of the beast' you will not be able to 'buy or sell'. And what would be one of the major purposes of a microchip implant in humans? The ability to buy, (food, pay bills, get cash, etc), and sell. It will replace credit cards, check books, cash, debit cards, etc. It could also have your credit history, etc.
It makes perfect sense to me that one day, and perhaps fairly soon, such a chip could be introduced to make life "easier" for people. You'll never forget your credit/debit/ATM cards, because it will be in the chip. It will be impossible to lose your credit cards. Once the government institutes some form of national health insurance, it will be far more convenient to visit your doctor or hospital, or be saved from death, if you have your 'smart chip' imbedded in you with your medical profile. And just think of how many children will be saved from abduction, and lost hikers saved from starvation with such a chip implant. Perhaps the most important, you will be able to pass through the airlines much faster if you have your government issued microchip available to be swiped by the security guy, and the chip could very easily replace the need for a passport too. It will also tell law enforcement if you're a terrorist or not, and it will be a great way to introduce a national ID as well.
Well, you get the idea. The technology is available right now, and the safety factors, health benefits and conveniences are endless with the 'chip'. So knowing all this, why is it such a stretch to believe that government, (either for tyranny or purposes benign), will one day find a way to get this microchip implanted into everyone?
Wouldn’t this all be dependent upon an incredible wireless network? Who would fund such an international unfrastucture? How would all this work somewhere that didn’t have a reliable power or communications system? Please see my #12.
The only thing that stands between us and this Orwellian world are hackers. They will never be able to make these chips secure enough that they won’t be able to be hacked. Imagine ID theft in this kind of world. For this simple fact, we may be spared this nightmare.