This article will examine the Croatian translations of the biblical parts of medieval Latin performative texts (sermons, dialogues) which were translated in the fifteenth and sixteenth centuries and written in Glagolitic script. The Croatian translators were acquainted with the parts of Scripture which were read during the liturgy. Their knowledge of the Bible was evident in the addition of archaisms typical for Glagolitic liturgical books written in Croatian Church Slavonic. Often the quotations from Scripture were adjusted to the narrator's (or preacher's) voice in different ways, by changing the grammar of the Latin text as well as by shortening or expanding the quotations. Research has shown that one of the main goals of the translators in changing biblical quotations was to improve the performative characteristics of translation, so that the translated text could be orally performed.