In the field of the pastoral ministry and the religious life of believers, preaching is inextricably linked with worship. Unfortunately, these two ministry of the Christian church are gradually being separated in the religious life of believers and the pastoral ministry. In practical theology field as well, the academic galapagosization is gradually deepening as homiletics and worship studies follow their own research methodology and focus on their own research topics. The researcher seeks a logical foundation to study homiletics and worship studies according to a holistic research methodology. The Christian worship and preaching revolve around one axis of the proclamation of the transcendent Word of God and the other axis of human response and devotion to the Word of God proclaimed and enacted. The Christian worship re-enacts and celebrates the transcendent and infinite humiliation of God and the self-sacrificing love of Jesus Christ through visible symbols and symbolic acts. The Christian preaching proclaims the incarnation of Jesus Christ, the grace of atonement, and the power of resurrection, contained in the symbolism of bread and wine, presented before the congregation gathered for worship. When worship and sermons are connected with each other in the heart of believers through visible and audible words, worship participants can personally receive the Triune God who comes through the Word, walk with Him, and move toward life change and the spiritual maturity. The researcher first introduced the independent research methodology of worship theology and preaching theology in order to find a research methodology to study worship and preaching from an integrated perspective. Next, the researcher introduced the hermeneutical practical theological methodology for one possible integrated research methodology. Representative scholars in this field include Charles Gerkin, Thomas Groom, and Daniel Louw. In addition, the researcher presented a sacramental perspective that understands worship and preaching as visible and audible words, and Walter Benjamin's philosophy of language that supports it. Finally, as another methodology to integrate worship and preaching, the researcher introduced narrative methodology and the symbolic interaction theory. Through a research methodology that studies worship and preaching in an integrated manner, the researcher not only establishes a more organic relationship between worship ministry and preaching ministry, but also suggests the more holistic research methodology for worship studies and homiletics as connected in the pastoral ministry fields.