Also noted the discussion here:
I liked this part from Luther in relation to the discussion about "liturgy".
Prayer, Public Praise, and Thanksgiving to God (The Liturgy / Public Worship). Luther writes, "Sixth, the holy Christian people are externally recognized by prayer, public praise, and thanksgiving to God. Where you see and hear the Lord’s Prayer prayed and taught; or psalms or other spiritual songs sung, in accordance with the word of God and the true faith; also the creed, the Ten Commandments, and the catechism used in public, you may rest assured that a holy Christian people of God are present. For prayer, too, is one of the precious holy possessions whereby everything is sanctified, as St. Paul says [I Tim. 4:5]. The psalms too are nothing but prayers in which we praise, thank, and glorify God. The creed and the Ten Commandments are also God’s word and belong to the holy possession, whereby the Holy Spirit sanctifies the holy people of Christ." (AE 41, 164)
"For prayer, too, is one of the precious holy possessions whereby everything is sanctified."
I like it a lot!