Complex sentence: Hezekiah sent his posts to spread the word among the remnant of the Northern kingdom, the posts were mocked during their visit to the country of Ephraim, Manasseh and Zebulun however some people of Asher and Manasseh and of Zebulun humbled themselves, and came to Jerusalem.
Split into simpler sentences: Hezekiah sent his posts to spread the word among the remnant of the Northern kingdom, the posts were mocked during their visit to the country of Ephraim, Manasseh and Zebulun. However some people of Asher and Manasseh and of Zebulun humbled themselves, and came to Jerusalem.