Augustine of Hippo
Matthew recounts that on a particular day, Jesus left the house and settled by the sea. A vast crowd of people gathered around Him, prompting Him to enter a boat and sit down while those on shore listened intently. He shared His teachings through parables, stating that "Therefore every scribe who has been taught the Kingdom of Heaven is like a master who takes out of his treasury new and old things." The Lord delivered these parables following the arrival of His mother and brothers, and keeping in mind the sequence of events, Matthew connects these occurrences: Jesus exited the house that day and positioned Himself by the sea, where a large multitude assembled.
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The phrase "on that day"—unless interpreted as "time," which is common in Scripture—indicates that one event likely succeeded the other either directly or after a brief period. This interpretation is further supported by Mark's adherence to the same sequence. Meanwhile, Luke, after detailing the presence of the Lord's mother and brothers, shifts to the account of calming the storm, without clarifying the timeline of these occurrences, making it difficult to argue for a contradiction with the accounts of the other Evangelists.
There is no contradiction in the parables that Matthew records and those found in Mark and Luke. The parables unique to Matthew are also free from any discrepancies. Despite variations in their presentation—some based on chronological order and others on memory—I do not perceive these differences as conflicting.