Don’t forget about the passage concerning kicking illegal aliens out of the country. Oh, never mind. :>)
If I remember by "Old Testament" God usually just told the Israelites to slay any outsiders in their lands, so actually Trump is being overly generous by only building a wall and kicking them out.
You might not want to open that can of worms, or you’re likely to encounter multiple very inconvenient passages about treating “the alien among you” with compassion and as native born.
Leviticus 19:33-34; Exodus 22:21; Deuteronomy 10:19
Don’t blame me. I didn’t write it.