en_tn/2ch/30/05.md

from Beersheba to Dan

These are the most southern and most northern parts of Israel. By referring to them this way, the writer emphasizes that all of Israel was included. Alternate translation: "from Beersheba in the south to Dan in the north" (See: rc://en/ta/man/translate/figs-idiom)

according to what was written

"as it was written that they should do." It is implied that it was written that they should observe the Passover with large numbers of people. This can be stated in active form. Alternate translation: "as Moses had written that they should observe it" (See: rc://en/ta/man/translate/figs-explicit)