Excellent overview of sacramental theology and OT typology, especially with regards to baptism and what it means to us.
"And this gift it is not the water that bestows (for in that case it were a thing more exalted than all creation), but the command of God, and the visitation of the Spirit that comes sacramentally to set us free. But water serves to express the cleansing. For since we are wont by washing in water to render our body clean when it is soiled by dirt or mud, we therefore apply it also in the sacramental action, and display the spiritual brightness by that which is subject to our senses."
"Why are both named [water and Spirit], and why is not the Spirit alone accounted sufficient for the completion of Baptism? Man, as we know full well, is compound, not simple: and therefore the cognate and similar medicines are assigned for healing to him who is twofold and conglomerate:— for his visible body, water, the sensible element — for his soul, which we cannot see, the Spirit invisible, invoked by faith, present unspeakably. For the Spirit breathes where He wills, and you hear His voice, but cannot tell whence He comes or whither He goes. He blesses the body that is baptized, and the water that baptizes."
"For this holy altar, too, by which I stand, is stone, ordinary in its nature, nowise different from the other slabs of stone that build our houses and adorn our pavements; but seeing that it was consecrated to the service of God, and received the benediction, it is a holy table, an altar undefiled, no longer touched by the hands of all, but of the priests alone, and that with reverence. The bread again is at first common bread, but when the sacramental action consecrates it, it is called, and becomes, the Body of Christ. So with the sacramental oil; so with the wine: though before the benediction they are of little value, each of them, after the sanctification bestowed by the Spirit, has its several operation. The same power of the word, again, also makes the priest venerable and honourable, separated, by the new blessing bestowed upon him..."
Scriptural types of material sacraments:
-Moses' rod
-Elisha's bones
-Elijah typifying baptism in immersing the wooden altar thrice with water before calling down fire.
-The wooden cross, our saving instrument.