Becanus (Manual Controv. II.2.2 p. 330) charges Luther with a personal, intimate, perichoretic union of body with bread.
Luther’s own speech feeds the suspicion: In, With, and Under this bread is my body, plus his hymn line hidden in the bread so small / He gave us His body to eat — ample handle for Impanation and Companation labels.
Latin
Posteriorem, Unionem scil. corporis Christi cum pane personalem, eoque intimam & perichoristicam, Lutherum inculcasse in duobus sensibus, prolixius exponit Becanus, Manual. Controv. lib. 2. cap. 2. quest. 2. p. 330. Et sanè vero Lutherus utriusque modi à se asserti, formulis suis loquendi, haud levem suspicionem genuerit, quando ex una parte, verba Christi, hoc est corpus meum, tùm in prosa oratione, per tres has particulas, In, Cum, & Sub hoc pane est corpus meum, tum in ligata Cantione à se composita: JEsus Christus unser Heyland &c. / per hunc rythmum, verborgen im Brod so klein / gab Er uns seinen Leib zu essen / explanavit, hancque suam Explanationem Impanationis & Companationis titulis gravandi ansam dedit amplissimam.