Craig:
This is what I think about this. Correct me if I am wrong. Please!
Fred and Patrick are right, if you are an office-bearer in the church, or want to take the responsible route if you are not.
If a person is convinced that the Confession the church holds to is in error, then he may state that he differs with the Confession, provided he is not an office-bearer. If he is an office-bearer, and he differs with the Confession on some point, and he finds it necessary to make a stand for it, then he must resign the office before he can state his difference. He must not be disruptive in stating his view, but he has a right, under the same Confession, to hold to what he sincerely believes the Bible to teach.
For a member is a member by faith in Christ and His Word, not by adherence to the Confessions. If one believes, even if he differs with the Confessions, he cannot be excluded from the Covenant community. But he is admonished to uphold the standards, and not to be rash or to cause disunity. A person can uphold the standards by respecting the beliefs of those who hold to the Confessions, just as he expects to be respected for those things he believes which may differ. It's certainly not the usual, but it does happen from time to time.
The way to go about it, beyond the legality of it, is to allow the truth to have its way. State the objection, and allow for free discussion on it. Watch for certain things in the discussion, to make sure that the truth of the matter is foremost in the discussion, and not some other motive. If the matter cannot be resolved on the basis of truth alone, then the matter is not ready for address for change, even if the person remains convinced. But if other interests seem to override the issue at hand, then it is clear that the matter will need time and quiet persistence to come to light in the end.
At no time can this be approached with favouritism or bias. One must be convinced of objectivity in the matter. And that is the sticky point often.
So the person who objects has a very heavy onus upon himself to subject himself to every form of criticism that is available. He must patiently withstand it; or to put it exactly, he must withstand it so that he also allows himself to be corrected if he is wrong, while he also has the confidence that it is the truth, not himself, that is able to withstand any and all criticism. If he wishes to correct, he must himself be willing for correction first of all.
A matter of changing something in the Confession is a matter of interest for all, and is for the good of all if it is right. If it is approached in a spirit of antagonism, it is defeated before it starts; for even if the correction is right, it is not for that purpose. A person is using his "correctness" to divide, and that is a misuse of sincere faith. As soon as his own importance takes precedence over the truth of the matter itself, it is a defeated attempt. That is why personal interest has to take a back seat in any attempt to make a correction to the Confessions. And that is why one must be willing to take a great deal of time in considering it before he speaks up. And that is why one must be willing for it to take a long time to effect the change he sees necessary.