The Scripture, which tells us not to be angry at all, and which says in the thirty-seventh Psalm, Cease from anger, and forsake wrath, and which commands us by the mouth of Paul to put off all these, anger, wrath, malice, blasphemy, filthy communication, would not involve God in the same passion from which it would have us to be altogether free.
OrigenYou cannot demand military service of Christians any more than you can of priests. We do not go forth as soldiers with the Emperor even if he demands this.
OrigenThe Church received from the apostles the tradition of giving baptism even to infants. The apostles, to whom were committed the secrets of the divine sacraments, knew there are in everyone innate strains of [original] sin, which must be washed away through water and the Spirit
OrigenWhat good does it do me if Christ was born in Bethlehem once if he is not born again in my heart through faith?
OrigenSeeing there are many who think they hold the opinions of Christ, and yet some of these think differently from their predecessors, yet as the teaching of the Church, transmitted in orderly succession from the apostles, and remaining in the Churches to the present day, is still preserved, that alone is to be accepted as truth which differs in no respect from ecclesiastical and apostolica tradition.
Origen