The principles adopted in FSP as explored by Professor Jan Firbas can be applied, apart from the level of clause, also to higher hierarchical levels of discourse, such as paragraphs. The paper deals particularly with the area of the thematic and the rhematic layers that run throughout a text structure. Any integral text may be viewed as a communicative macrofield, in which different degrees of communicative dynamism are distributed over different parts of the text according to the extent to which the parts contribute towards the development of communication. For the purpose of analysis, an extract from the New Testament (Lk 2:1-20) is used.