Baethgen describes a Syriac text purporting to be a translation of a commentary on the psalms by Theodore of Mopsuestia and including also commentary on Exodus 15, Isaiah 42:10–13, and Deuteronomy 32. He establishes that it cannot be a simple translation of Theodore's commentary, both because it is clearly based on the Peshitta rather than the LXX and because it does not agree with the surviving Greek fragments of Theodore's commentary. It does, however, follow Theodore's structure and method and must contain much that derives from him. Where it does parallel the surviving Greek fragments, it abbreviates them greatly. Meyer presents detailed comparisons of several passages from the Syriac with what is known of Theodore's work and an extended selection of other material in German translation.