The censers of these who sinned at the cost of their lives — and they shall make them into flattened plates as an overlay for the altar, for they brought them before Hashem and they became sanctified; and they shall be a sign for the children of Israel.
Torah Temimah / classic: the censers became sanctified by being brought before Hashem; made into a covering as a lasting sign.
English: The censers of these who sinned at the cost of their lives — and they shall make them into flattened plates as an overlay for the altar.
Sanctification of the censers.
Those who offered unauthorized incense paid with their lives; their vessels remain holy and become a permanent warning on the altar.