Because The society does not teach a basic Christian doctrine, salavtion by grace, but rather teaches that salavtion only comes through them by works, this in itself creates a dilemma.
If salvation is by works only, then you need a system that puts you under an obligation to perform these works. What are these works?
Firstly, attending 5 meetings a week, for the rest of your life. This includes the Special Assembly Day, the Circuit Assembly and the three day District Convention. In addition to this, you must go out on field service at least once a week, preferably on a Saturday which is known as "Magazine Day." (See the JW calendar for this.)
Then you must put in a prescribed number of hours each month so that you are doing the congregation average. A brother once told me, it was not enough to do the congregation average, you must do the national average to be approved, especially if you want to reach out.
Then you must do prestudy for EACH of these five meetings as well as the daystext, daily Bible reading and personal study.
How exactly do the Society impose this rigid system of salvation by works?
Blondie notes, that in her "Comments you will not hear at the Watchtower", that more references are made to the Old Testament than the New Testament. The Society writes, that even though true Christians are not under the Mosaic Law, they are under the principles of the law.
How different is this from what Paul says at Galatians 3:13
"Christ by purchase released us from the curse of the Law by becoming a curse instead of us, because it is written: "Accursed is every man hanged upon a stake."
Also, the prophet Daniel said that "sacrifice and gift offering would be done away with."
So the Society keeps its members obedient by using parts of the Mosaic Law as a force in their lives.
How often has the Society declared that Jehovah is our Father and the organization is our Mother?
The Modern Day Mosaic Law
------------------------------------------
Attend all the meetings
Mosaic Law: Exodus 20:10 "But the seventh day is a sabbath to Jehovah your God. You must not do any work..."
Example: Numbers 15:32 "While the sons of Israel were contuining in the wilderness, they once found a man collecting pieces of wood on the sabbath day."
Reinforcemnent: Numbers 15:35 "In time Jehovah said to Moses: "Without fail the man should be put to death, the whole assembly pelting him with stones outside the camp."
Attend assemblies and conventions
Mosaic Law: Deuteronomy 31:12,13 "Congregate the people, the men and the women and the little ones and your alien resident who is within your gates, in order that they may listen and in order that they may learn, as they must fear Jehovah your God and take care to carry out all the words of this law."
Encouraged to preach at least 10 hours a month
While the Society does not refer to this practice in principle regarding the Mosaic Law, you can be sure that the smiliarity between an Israelite giving Jehovah a tenth of all his flock and first fruits equates with giving "Jehovah ten hours a month." One example, was of an elder who said in the field service meeting, that "some people only give Jehovah ten hours a month."
Dress and grooming, wearing badges at conventions
We all know the annual ritual of how and what to wear during the convention. In a similar way, the Israelites were told to have a blue thread sown on the edge of their skirt to identify themselves as God's people. In the same way, the Society tells us to always wear our badge, even during leisure hours, so that we may identify ourselves as Jehovah's Witnesses.
Contributions
Never failing to mention how although we are not under the Mosaic Law where we give a tenth of everything, they use coercion and manipulation to pressure witnesses into giving more of their time and money.
These are just a few of the ways the Society has adapted the Mosaic Law to put Christians under the oath to serve God so as to get salvation by works, and not faith.