Undoubtedly the Apostles laid down disciplines for the Church. What are they?
Is it not reasonable to assume that the Lord's Apostles, after having received all those teachings from the Lord, left the Church without any disciplines or laws to direct her affairs. They did not write these in their epistles either because such things were not for the public or because they would be known to all through practice. Undoubtedly, those disciplines have reached us through Tradition and Entrustment.