The scripture for today, December 27 (12/27), is 1st Kings 12:27 as found in the Old Testament of the Bible:
“If these people go up to offer sacrifices at the temple of the Lord in Jerusalem [not some other capital city], they will again give their allegiance to their lord, Rehoboam king of Judah.”
For centuries and millenniums, kings selected a patron god for their nation, a god they most revered to protect them. The patron god was selected by the king. Nations were always ruled by either a high priest or king. Some nations even had priest-kings.
So, when Constantine conquered much of Europe and set up his empire, he needed a patron god. One day during a battle, he looked up and saw a cloud formation that reminded him of things he’d heard about Jesus. So he made Jesus his patron God, and Christianity his empire’s required religion. He even rode his army through rivers, then declared them baptized. He ordered conquered peoples to be baptized or killed. Headquarters was Rome.
Luther was friends of the Duke [king] of Germany, so when he broke off from Rome, the official state religion became Lutheranism. John Calvin was in the government of Switzerland, so when it broke off from Rome, the official state religion became Calvinism. When the king of England broke off from Rome, he became head of the Church of England (and Prince Charles is head of the Church there today). John Knox was influential with the parliament of Scotland, so his Presbyterianism became the official religion of Scotland.
In each instance, the king or parliament could force its citizens to follow the chosen religion of that nation. If people didn’t, they could legally put them in prison, torture them, and execute them at will. And, in earlier centuries, they did just that.
Eventually, the idea of separating religion from the state government became popular. And that is where many nations are today. But it does not mean people in government cannot express religion. It just means they cannot force citizens to be a particular government-selected religion or be in danger of punishment.
That is true “separation of church and state”.

“The Lord’s hand was with them, and a great number of people believed and turned to the Lord.”
“The seventh angel sounded his trumpet, and there were loud voices in heaven which said: ‘The kingdom of the world has become the kingdom of our Lord and of his Christ, and he will reign forever and ever!’ “
“Let us not give up meeting together, as some are in the habit of doing, but let us encourage one another ~ and all the more as you see the Day approaching.”
“Nobody should seek his own good, but the good of others.”
“No one is like you, O Lord; you are great, and your name is mighty in power.”
“Not everyone who says to me ‘Lord, Lord’ will enter the kingdom of heaven, but only he who does the will of my Father who is in heaven. Many will say to me on that day, ‘Lord, Lord, did we not prophesy in your name, and in your name drive out demons and perform many miracles?’ Then I will tell them plainly, ‘I never knew you. Away from me, you evildoers!’ “
” ‘Leave your country and your people,’ God said, ‘and go to the land I will show you.’ “
“The Lord bless you and keep you; the Lord make his face to shine upon you and be gracious to you; the Lord turn his face toward you and give you peace.”