The 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
OrigenThe honor that we pay to the Son of God, as well as that which we render to God the Father, consists of an upright course of life. This is plainly taught us by the passage, "You that boast of the Law, through breaking the Law dishonor God."...For if he who transgresses the law dishonors God by his transgression,...it is evident that he who keeps the law honors God. So the worshipper of God is he whose life is regulated by the principles and teachings of the Divine Word
OrigenThe soul has neither beginning nor end [They] come into this world strengthened by the victories or weakened by the defeats of their previous lives
OrigenIf all things were made through Him, clearly so must the splendid revelations have been which were made to the fathers and prophets, and became to them the symbols of the sacred mysteries of religion.
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