וַיַּעֲמֹ֥ד בֵּֽין־הַמֵּתִ֖ים וּבֵ֣ין הַֽחַיִּ֑ים וַתֵּעָצַ֖ר הַמַּגֵּפָֽה׃
And he stood between the dead and the living; and the plague was stayed.
Targum Jonathan on Numbers
And Aharon stood in the midst, between the dead and the living with the censer, and interceded in prayer; and the plague was restrained.