More false teaching according to Stubborn:
Rufinus, Church Father (4th Century): A Commentary on the Apostles' Creed: "It is written that when the side of Jesus was pierced "He shed thereout blood and water." This has a mystical meaning. For Himself had said, "Out of His belly shall flow rivers of living water." But He shed forth blood also, of which the Jєωs sought that it might be upon themselves and upon their children. He shed forth water, therefore, which might wash believers; He shed forth blood also which might condemn unbelievers. Yet it might be understood also as prefiguring the twofold grace of baptism, one that which is given by the baptism of water, the other that which is sought through martyrdom in the outpouring of blood, for both are called baptism."