|Christian theology should be the effective means witnessing to the living God. If theology forgets this essential idea, and stays solely in intellectual or domatic debates, it would end up in a grand failure. Since the early churches, in fact, there have been two significant traditions that safeguards the vital actualization of the gospel in worships, such as the Eucharist and the lectionary, In the Eucharist, there has been embedded the life of Jesus Christ through whom the salvational work is enacted in the participants when the sacrament being celebrated. One of the significant reasons why today``s churches should pay higher regards to the Eucharist is because the salvational events of Jesus are loaded in its form and contents, and so His salvation can be strongly being valid in its meaningful celebration. Lectionary is like one of the two wheels to confirm this salvational history by its rational aspects, It was a system that constantly recurred the Christological events in reading and preaching the lessons proper to each theme based on the liturgical seasons throughout the year. In the period like medieval age when the congregation couldn``t understand the meaning of the Eucharist due to the Latin language, which was foreign to them, and thus they couldn``t avoid religious errors in their lives, the lectionary would function as a valid solution to such a dark situation if it was properly adopted in liturgical practices. In the present context that most protestant churches fell in too excessive intellectualism disregarding the multi-sensical channels in communication, and facing the failure of the rich and balanced experience of the gospel, these two precious legacies reveals their values again. From this point of view, current protestant churches should have the keener concern for the Eucharist and lectionary in the recovery of living theology.