“And also, with respect to the foreigner, he who is not of your people Israel, but comes from a distant land, for the sake of your great name and your powerful hand and outstretched arm, when he comes and prays to this house, then may you yourself hear from the heavens, from your dwelling place, and do according to all that the foreigner asks of you, so that all peoples of earth will know of your name and fear you, as do your people Israel, and that they may know that your name possesses this house that I have built.” (2 Chronicles 6:32–33, LEB)

This is a good perspective of the Old Covenant approach to “evangelism.”  We can call it “Come and See.”  The Jewish people weren’t proselytizers per se; they had more of the philosophy that the temple was open for any and every foreigner to come and see the worship of Yahweh and to pray to Yahweh.  In this way “all the peoples of earth will know your name and fear you.”

In the New Covenant the philosophy [as commanded by Jesus himself] becomes: “Go and Tell.”

And Jesus came and said to them, “All authority in heaven and on earth has been given to me. Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you. And behold, I am with you always, to the end of the age.”” (Matthew 28:18–20, ESV)

Here’s the thing.  Whether the philosophy is “Come and See” or “Go and Tell,” the purpose does not change at all.  God’s name is to be known by every tribe, tongue, people, and nation, because [and this is the real takeaway] God loves the foreigner.  Why else would he invite them to come and see, and why else would Jesus say to go and make disciples of all the nations? There is a pretty straight line between Jesus’ love for the foreigner and our own attitude towards the foreigner/immigrant/alien. Love, dear reader, it’s love.