1
כשבת המלך - משמע בתחילת מלכותו והדר כתיב בשנת שלש: When the king sat: It is implied [that] it was at the beginning of his reign. But then it goes back to write, "In the third year."
2
כשנתיישבה דעתו - שמתחלה היה דואג שיצאו ישראל מתחת ידו כשיגמרו שבעים שנה לגלות בבל ועכשיו נתיישבה: When his mind was settled: As at the beginning, he worried that Israel would leave from being under his hand when the seventy years of the Babylonian exile were finished. But now [his mind] was settled.