I was reading 2 Kings and I kept noticing the format "He was ... years old when he began to reign, and he reigned ... years in ... ."
This reminded me of genealogies in Genesis: "When ... had lived ... years, he became the father of ... ; and he lived so many years after this birth and had other sons and daughters."
Almost as though when a king begins to reign, he becomes a father of his people.
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