COMMON LANGUAGE. It is true that a man is permitted to pray privately in any language that he understands, but public prayers in meetings for worship are to be made in the common language known to all.
PRAYER. Let all the prayers of the faithful be poured forth to God alone, through the mediation of Christ only, out of faith and love. The priesthood of Christ the Lord and true religion forbid the invocation of saints in heaven or to use them as intercessors. Prayer is to be made for magistracy, for kings, and all that are placed in authority, for ministers of the Church, and for all needs of churches. In calamities, especially of the Church, unceasing prayer is to be made both privately and publicly.
FREE PRAYER. Moreover, prayer is to be made voluntarily, without constraint or for any reward. Nor is it proper for prayer to be superstitiously restricted to one place, as if it were not permitted to pray anywhere except in a sanctuary. Neither is it necessary for public prayers to be the same in all churches with respect to form and time. Each Church is to exercise its own freedom. Socrates, in his history, says, “In all regions of the world you will not find two churches which wholly agree in prayer” (Hist. ecclesiast. V.22, 57). The authors of this difference, I think, were those who were in charge of the Churches at particular times. Yet if they agree, it is to be highly commended and imitated by others.
THE METHOD TO BE EMPLOYED IN PUBLIC PRAYERS. As in everything, so also in public prayers there is to be a standard lest they be excessively long and irksome. The greater part of meetings for worship is therefore to be given to evangelical teaching, and care is to be taken lest the congregation is wearied by too lengthy prayers and when they are to hear the preaching of the Gospel they either leave the meeting or, having been exhausted, want to do away with it altogether. To such people the sermon seems to be overlong, which otherwise is brief enough. And therefore it is appropriate for preachers to keep to a standard.
SINGING. Likewise moderation is to be exercised where singing is used in a meeting for worship. That song which they call the Gregorian Chant has many foolish things in it; hence it is rightly rejected by many of our churches. If there are churches which have a true and proper sermon but no singing, they ought not to be condemned. For all churches do not have the advantage of singing. And it is well known form testimonies of antiquity that the custom of singing is very old in the Eastern Churches whereas it was late when it was at length accepted in the West.
CANONICAL HOURS. Antiquity knew nothing of canonical hours, that is, prayers arranged for certain hours of the day, and sung or recited by the Papists, as can be proved from their breviaries and by many arguments. But they also have not a few absurdities, of which I say nothing else; accordingly they are rightly omitted by churches which substitute in their place things that are beneficial for the whole Church of God.