The people of God are the congregation of testimony. We worship and serve the God who intervenes in human history, and we are among those who testify to what He has done. We are to do this with our lives, with our families, and with our collective and corporate worship. We testify, and we are to testify in all that we do. This includes whatever sanctuary we might build. Is the testimony true? If there is no true testimony, there is no true sanctuary.
The ark of the covenant was called the ark of the testimony numerous times (e.g. Ex. 26:34). The two tables of the Ten Commandments were called the “tables of testimony” (Ex. 31:18). The tabernacle was called the “tabernacle of testimony” (Num. 1:53). Our task is always to testify to God’s testimony, responding to it faithfully. God says “I have acted here,” and we say “Yes, He did.” And remember that when we seek to build a testimony, there will be those who don’t want us to—like Sanballat and Nehemiah’s wall.
The philosophers Hume and Kant, in a frenzy of high conceit, helped to banish “testimony” from the modern world as a reliable source of knowledge. We want an idolatrous way of knowing that we think is indubitable. But we are finite, and so it has to be testimony or nothing. Jesus is Lord, so it is testify and live or languish and die.