Make an atonement for the house— This expression has been before applied to inanimate things: for instance, to the altar, Exodus 29:36-37 and therefore can imply no more in this place than the making fit for use the thing atoned for. So in the 18th verse, applied to the leper, it signifies, the rendering him legally fit for the offices of religion and society; as here, the rendering the house fit to dwell in.
Note; 1. Masters of families should look well to their houses, and seek to stop the first appearances of sin. 2. We should remove those from us whose conversation is dangerous and infectious. 3. If error and corruption have seized generally upon a church or state, their ruin is near.