What do Jews still do to cleanse their house of leaven?

Orthodox Jews and some other areas of Judaism still cleanse their house of leaven from top to bottom. This practice is connected to the institution of Passover in Exodus chapter 12, and they continue observing Passover, removing leaven throughout the home.

Les explains that during the Passover season, Orthodox Jews and some other areas of Judaism make a big ado over Passover and still practice it. They cleanse their house of leaven from top to bottom, a practice that goes back to the institution of Exodus chapter 12. He notes that chapter 12 is a benchmark chapter, much like Genesis chapter 12, because it introduces Passover. The chapter opens with the Lord speaking to Moses and Aaron in Egypt, saying this month, now called April, would be the beginning of months.

Exodus 12

Where does the Jewish practice of cleansing leaven from houses go back to?

The Jewish practice of cleansing leaven from houses goes back to the institution of Exodus chapter 12, where Passover was introduced. Scripture records that the Lord spoke to Moses and Aaron in Egypt, establishing that month as the beginning of months.