17 The people, however, continued to sacrifice at the high places, but only to the LORD their God.

Read 2 Chronicles 33:17 Using Other Translations

Nevertheless the people did sacrifice still in the high places, yet unto the LORD their God only.
Nevertheless, the people still sacrificed at the high places, but only to the LORD their God.
However, the people still sacrificed at the pagan shrines, though only to the LORD their God.