2 Samuel 15:7, KJV-And it came to pass after forty years, that Absalom said unto the king, I pray thee, let me go and pay my vow, which I have vowed unto the LORD, in Hebron. Most English versions read the same, "after 40 years". To WHAT does the 40 years refer? Absalom was dead by age 25, & David's entire reign was but 40 years. FOUR years seemsta fit the timeline better, since Absalom stayed with his gramdpa for 3 years & then began his scheme to make himself very popular. Could there be a slight goof in the Hebrew? YOUR thoughts, please?