κεφαλή is the ordinary Greek word for head, but its figurative uses require careful contextual judgment. It can refer to the physical head, to a representative or governing relation, and in Paul it is especially important for Christ's relation to the church. In Colossians, the word is not a loose metaphor for influence. Christ is the head of the body, the church, and the One from whom the whole body grows as it holds fast to Him. The word serves Paul's call to remain joined to Christ rather than being disqualified by visions, false humility, angelic preoccupation, or self-made religion.
Pastorally, κεφαλή should be taught with both confidence and restraint. In Colossians, headship first means Christ's living, governing, nourishing relationship to His body. The church is not self-sustaining. It grows from Christ. The word should not be used as a blunt instrument for every leadership question, nor should it be drained of authority and organic dependence. Christ's headship means His people receive life, order, protection, and growth from Him. To lose hold of the Head is not a minor devotional weakness. It is to disconnect from the One by whom the body lives.
Lexical sourceBook contextPassage contextPastoral application