"we need to distinguish between two types of submission. The first type (type I) comes from the realm of political and military struggle. This type of submission is obedience to an external authority, which can be voluntary but often is not. The second type of submission (type II) is one that comes from personal relationships and is often based on love or compassion. In this second type, submission is the voluntary giving up of power in order to take up the role of a slave, so that one may serve the needs of another person. The first type is external, hierarchical, and legal. The second type is internal, personal, and a kind of gift or grace."
Alan G. Padgett, As Christ Submits to the Church: A Biblical Understanding of Leadership and Mutual Submission (Baker Academic, 2011), xiii