What does Exodus 12:38 mean?
This passage describes Israel's exit from Egypt (Exodus 12:37, 40–41). The Lord has made a clear distinction between His people and the people of Egypt (Exodus 8:22; 9:4, 7, 26; 10:22–23). The purpose of these many disasters (Exodus 3:19–20) has been freeing the Hebrews from slavery (Exodus 1:11–14). Yet here, we see a large number of non-Israelites coming along in the exodus.In Scripture, God does not judge on the basis of ethnicity or ancestry. The nation of Israel is His chosen people (Deuteronomy 14:2). While that identity is hereditary from generation to generation, it is primarily about faith. Those Egyptians who saw supernatural signs (Exodus 8:19; 10:7) had an opportunity to submit to the One True God. Prominent examples of this inclusivity are Rahab (Joshua 6:25) and Ruth (Ruth 1:4; 4:10–12). Both are ethnic outsiders, and both become part of the family of Israel (Matthew 1:5; Hebrews 11:31). When the Lord gave instructions for the Passover (Exodus 12:11–14), He was already including non-Jewish people in the plans (Exodus 12:19). Unassimilated peoples—"foreigners" (Exodus 12:43, 45)—are not part of this.
Israel also leaves with a large contingent of animals. God spared them from the horrific losses inflicted on Egypt (Exodus 9:6; 10:25). This will provide the people with transportation, muscle power, and food. These animals will also be crucial for sacrifices that must be offered under the upcoming covenant (Exodus 10:26).