This Church is the house of God. It is his delight to dwell here. Take care, then, that he never has the sorrow of seeing it undermined by schism and collapsing in ruins.
[From the treatise On Prayer by Tertullian, priest]
Prayer is the offering in spirit that has done away with the sacrifices of old.... We pray in spirit, and so offer in spirit the sacrifice of prayer.... All the angels pray. Every creature prays. Cattle and wild beasts pray and bend the knee. As they come from their barns and caves they look out to heaven and call out, lifting up their spirit in their own fashion.
[From the treatise On Prayer by Tertullian]