The Greek verb hupotasso (ὑποτάσσω) means to arrange or place under, to submit, or to be subject to. It is a military term: to arrange under a commander. It appears about 38 times in the NT — in contexts of church order, marriage, civil government, and cosmic lordship.
Hupotasso is one of the NT's most misunderstood words because it is read through power dynamics rather than covenant theology. In Ephesians 5:21, Paul grounds mutual submission (hupotassomenoi) in the fear of Christ. The cosmos itself is structured by hupotasso: all things will be subjected (hupetage) to the Son, who will then subject Himself to the Father 'so that God may be all in all' (1 Corinthians 15:28). James 4:7 applies it evangelistically: 'Submit yourselves to God. Resist the devil, and he will flee from you.' Hupotasso is not humiliation — it is ordered love within the life of God Himself.