“And the Word became flesh…”
In the Old Testament God is the one who led His people out of Egypt. In the New Testament God is the one who raised Jesus from the dead. In both testaments God is revealed as the God who acts and is involved in what we call history, in temporal time and space.
The progress of the Gospel throughout human history has had real and demonstrable effect not only on individual human beings but also on the whole range of human reality. Institutions, cultures, ideas, etc. have been shaped by the Gospel and its implications. This has often been not because of the Church but in spite of it. For the perpetual temptation of the religious impulses that we naturally associate with Christianity (which is not a religion) always want to spiritualize, internalize or spatialize the Gospel. The Bible, on the other hand, reveals the God who is temporalized in the real world of people and events, including sacraments.
Non-sacramental Christianity which emphasizes reason and the internal character of faith, skates dangerously close to the brink of gnosticism which discounts the temporal for the sake of the spiritual. Martin Luther ran into this mentality among the ‘anabaptists’ of his day. The following is a quote from Luther on this score as it applies to infant baptism.
“The anabaptists pretend that children, not as yet having reason, ought not to receive baptism. I answer: That reason in no way contributes to faith. Nay, in that children are destitute of reason, they are all the more fit and proper recipients of baptism. For reason is the greatest enemy that faith has: it never comes to the aid of spiritual things, but – more frequently than not – struggles against the Divine Word, treating with contempt all that emanates from God. If God can communicate the Holy Spirit to grown persons, he can, a fortiori, communicate it to young children. Faith comes of the Word of God, when this is heard; little children hear that Word when they receive baptism, and therewith they receive also faith.”
– Martin Luther (1483-1546), Table Talk CCCLIII  .
“May the peace of God that passes all understanding keep your hearts and minds in Christ Jesus our Lord.”