Speaking to His disciples, He calls them Scribes on account of their knowledge, because they understood the things that He brought forward, both new and old, that is from the Law and from the Gospels; both being of the same householder, and both treasures of the same owner. He compares them to Himself under the figure of a householder, because they had received doctrine of things both new and old out of His treasury of the Holy Spirit.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).