What does Exodus 12:48 mean?
Celebrating Passover involved a series of symbolic acts (Exodus 12:3–20) to remind Israel of how God freed them from Egyptian slavery (Exodus 12:29–33). These symbols also served to foreshadow the ministry of Jesus Christ, the One who acted as the universal sacrifice for sin (1 Corinthians 5:7).God did not say, "only those born into Israel are my people. Only the native-born may observe Passover." Instead, He establishes an important concept. Those who follow His covenant can participate in this celebration. The most basic sign of obedience was circumcision (Genesis 17:10–14). Those willing to follow the Lord's commands can become full participants in the family of Israel. They are not given limited access to the ritual: they are "as a native" (Exodus 12:49)
Several prominent stories in the Old Testament include people born outside of God's chosen people (Deuteronomy 14:2) who find full acceptance and integration because of their faith, such as Rahab and Ruth (Joshua 6:25; Ruth 1:4; 4:10–12; Matthew 1:5; Hebrews 11:31). God sent a prophet to the Assyrians—enemies of Israel—so they could avoid judgment (Jonah 1:1–2)
The "stranger" and the "sojourner" here are those who travel through Israel's land or live there without being part of the nation itself. Scripture warns not to abuse such people (Exodus 22:21; Deuteronomy 24:17; Malachi 3:5). In most cases, they were to be offered the same rights and protections as anyone else (Leviticus 19:34; Numbers 15:29).