Thank you again for the answer. I really do not understand this part though. Can you help me to understand?
Symbolic parallelism:
Symbolic parallelism of Bullingerbasically, the bread and wine are symbols but at the same time faith receives Christ on a parallel track.
When the bread is eaten outwardly, there is a at the same time an inward feeding on Christs body. God is offering that which is signified by the elements, just as in the preaching the offer of the gospel is given. This view is found in Bullingers Second Helvetic Confession (1566; see BC 5.183; 5.203). This emphasizes the present tense indicating what is the happening as believers participate in the Lords Supper. Gerrish notes: This, of course, does take us beyond Zwingli, whose characteristic tense is the past, not the present. In Zwinglis view, the elements call to mind something that has happened: Christs body was broken, we have turned to him in faith. And yet Bullingers parallelism is not Calvins position either, for it lacks the use of instrumental expressions; the outward event does not convey or cause or give rise to the inward event, but merely indicates that it is going on. See Gerrish, Sign and Reality, 124. Gerrish notes that where Calvin and Bullinger never agreed was over Calvins belief that God performs the inward through the outward, Grace and Gratitude, 167 n.29. For Calvin, God in sacraments does not feed our eyes with a mere appearance only, but leads us to the present reality and effectively performs what it symbolizes. See Inst. IV.15.14 and IV.17.3.