Yes. Scripture (and Jesus) absolutely taught separation of faith from government. He refused to get involved in the politics of the day, instead speaking to personal faith and responsibility.
There is so much misunderstanding today when people mistakenly try to apply Christ’s words to government, when they were directed at individuals.
I find this passage interesting, written by the final Old Testament prophet, Malachi, who referred to the coming of John the Baptist and the Messiah, which would happen about 400 years after Malachi wrote these words:
(note the final 3 lines)
Behold, I send My messenger,
And he will prepare the way before Me.
And the Lord, whom you seek,
Will suddenly come to His temple,
Even the Messenger of the covenant,
In whom you delight.
Behold, He is coming,
Says the LORD of hosts.
But who can endure the day of His coming?
And who can stand when He appears?
For He is like a refiners fire
And like launderers soap.
He will sit as a refiner and a purifier of silver;
He will purify the sons of Levi,
And purge them as gold and silver,
That they may offer to the LORD
An offering in righteousness.
Then the offering of Judah and Jerusalem
Will be pleasant to the LORD,
As in the days of old,
As in former years.
And I will come near you for judgment;
I will be a swift witness
Against sorcerers,
Against adulterers,
Against perjurers,
Against those who exploit wage earners and widows and orphans,
And against those who turn away an alien
Because they do not fear Me,
Says the LORD of hosts.
—Malachi 3:1-5
No use flaming me. I didn’t write it.
Yes, if God were standing at the border incarnate today, he would be appalled if we turned away MS-13 members and criminals from Mexico and beyond. [/s]
Don’t misuse scripture like that.
I really don't think Malachi was implying that the Lord will witness against those who believe in border enforcement, do you?