Moluccan Malay is the main language of the Moluccan Protestant migrant church. This church was founded by the ex-soldiers and their families who were forced to migrate to the Netherlands in 1951 after the decolonization of present-day Indonesia. In this paper, I describe the music and singing practices of Moluccan Protestants. I analyze the typical instruments for the accompaniment of congregational singing, the repertoire of hymns that is written and sung in Malay, and the manners of saying and doing among different generations and denominations. With this analysis, I aim to question and reconstruct the conceptual boundaries between music, form, and language. I introduce the concept of textual aurality to theoretically explain the idea of an amalgamation: music becomes language, language becomes form; form becomes language, and language becomes music. Textual aurality grasps denominational and generational politics on the one hand, and the superseding sense of Moluccan belonging on the other. I demonstrate how the sound of the Malay language evokes this feeling of belonging through the practice of singing. Keywords: Language; Music; Moluccan; Singing; Belonging.