A person may not be compelled to give his testimony or statement or to produce a document or other thing in violation of any legally applicable privilege.
Commitment schemes are designed so that a party can not change the value or statement after they have committed to it: that is, commitment schemes are "binding".
Each congregation has its own covenant, sometimes called a bond of fellowship or statement of purpose, which describes the spirit of how members are united in religious community.
Scope analysis is not mechanical, but requires an integrated assessment of multiple factors, including contract type, specification or statement of work, cost and performance period.