In spite of the current focus on refugees and war caused displacement, the labor migration is the most commune form of migration. Among others, this form of economic migration differs from other forms of migration in that travel and communication channels usually remain open, and migrants themselves can largely decide on their mobility. The forms of labour migration include both short-term and recurring 'seasonal work' and long-term relocation of the centre of life for work. From a methodological perspective, labour migration can be understood as a form of migration that enables special transfer processes due to its circular nature. From a religious perspective, it is necessary to ask to what extent this form of migration influence the dynamic of religious communities. On the base of two case studies, I argue that religious institutions - what we generally call in the western context Churches - spread along the routes of migrant workers. This insight helps us to understand that not only religion is a resource for individuals and communities in the process of migration, but that migration itself shapes Churches so far that sometimes theological principles must be adapted if not renegotiated.