Wayne Gruden, a Christian ethicist, makes a case for building a wall. He cites to biblical passages that reinforce the idea that walls provide protection, peace and security to those inside the walls. These are good things, he says, and he cites to support for this proposition in the Scriptures.
The Psalmist prays (for Jerusalem) for “peace within your walls and security within your towers” (Psalm 122:7) and praises God for strengthening the bars of Jerusalem’s gates, making peace within its borders. (Psalm 147:12-14) David prayed to God to build up the walls of Jerusalem. (Psalm 51:18) King David built walls around Jerusalem, and King Solomon strengthened those walls after him. (1 Kings 3:1)
God used the Babylonians to visit judgment on the people of Israel by breaking down the walls of Jerusalem and burning down the temple and the palaces. (2 Chronicles 36:19. See also Jeremiah 52:14) The first thing the remnant did when they returned to Jerusalem was to rebuild the wall. (Nehemiah 2:17)
Indeed, walls and gates and towers are all pictures that convey the peace and security that the ancients hoped and prayed for from God. They stand for that very peace and protection for which they longed in the harsh world of the their time. Proverbs says, “A man without self-control is like a city broken into and left without walls.” (Proverbs 25:28) Certainly, building walls in a hostile world is a prudent thing to do. On different levels, we do this (provide peace and security) for our families, our communities and our nations. Basic decency demands it. Therefore, Wayne Grudem concludes that “the Bible views border walls as a morally good thing”.
I agree with him, but I think he takes it too far. Few people, for instance, believe the Berlin Wall was a morally good thing. We also can’t view the moral goodness of providing peace and security in a vacuum. We need to consider the big picture, too.
Walls are not good or evil in themselves. They can protect and maintain peace and security for the people within the walls. They were a critical and necessary component of life in most centuries gone by. People who were not protected by walls were exposed to the vagaries of every vagabond with bad intent. But walls that are designed to keep people captive to an oppressive regime are not good.
Walls can be used to provide peace and security, but they can also be used for evil purposes like oppression. The issue isn’t walls, but purpose and intent. For Christians that means God’s ultimate purposes and intent.