What does Exodus 13:3 mean?
God freed Israel from slavery (Exodus 1:11–14) using powerful supernatural disasters against Egypt (Exodus 3:19–20). The last and worst of these was the death of Egypt's firstborn (Exodus 11:4–6). Israel has been commanded to remember this (Exodus 12:40–41) forever through an annual festival (Exodus 12:14). After celebrating a ritual to remember the first Passover (Exodus 12:12–13), the people are to observe a week where no leaven is eaten. This is the Feast of Unleavened Bread (Exodus 12:17).Leaven is yeast: the spores that multiply and grow, causing dough to rise. The Lord ordered Israel to prepare unleavened bread on the night of the first Passover (Exodus 12:8). This gave them provisions for travel on that night's hasty exit (Exodus 12:33, 39). Yeast also serves, here, as a metaphor for sin. Scouring the home to remove all yeast (Exodus 12:19–20) reflects the desire to completely separate from sin. Sin, like yeast, quickly grows, spreads, and permeates everything it touches (Galatians 5:9).