Here are six things [submission] is not, based on 1 Peter 3:1-6:
1. Submission does not mean agreeing with everything your husband says.
2. Submission does not mean leaving your brains or your will at the wedding altar.
3. Submission does not mean avoiding every effort to change a husband.
4. Submission does not mean putting the will of the husband before the will of Christ.
5. Submission does not mean that a wife gets her personal, spiritual strength primarily though her husband.
6. Submission does not mean that a wife is to act out of fear.
John Piper