Revelation 21:19, 20
And the foundations of the wall of the city were garnished with all manner of precious stones. The first foundation was jasper; the second, sapphire; the third, a chalcedony; the fourth, an emerald; the fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, a topaz; the tenth, a chrysoprasus; the eleventh, a jacinth; the twelfth, an amethyst.

John is still looking at the city, but now his eyes are drawn downward. Even the foundations are beautiful. Not plain stone. Not bare concrete. Not something hidden away and forgotten. The very base of the city is adorned with precious stones, one after another, flashing with color, brilliance, and glory. Jasper. Sapphire. Chalcedony. Emerald. Sardonyx. Sardius. Chrysolite. Beryl. Topaz. Chrysoprasus. Jacinth. Amethyst.

That tells you something about the Lord right away. He does not build carelessly. He does not throw something together. Even what is underneath is glorious. Even what supports the city shines. The New Jerusalem is not only secure. It is beautiful all the way through.

And for those who knew the Scriptures, these stones would call something to mind. In the Old Testament, the high priest wore a breastplate bearing stones that represented the twelve tribes of Israel. When questions arose, when guidance was needed, there was this connection between the priest, the presence of God, and what the Bible calls the Urim and the Thummim, the lights and perfections. Numbers 27:21 points in that direction. Nehemiah 7:65 mentions it again. However the details worked, the idea is clear enough. Light. Perfection. Direction. Guidance from God in connection with His appointed priestly ministry.

That is why many rabbis taught that the stones on the breastplate somehow lit up as the Lord gave direction. Perhaps the answer was seen through the stones themselves. Perhaps the letters associated with the tribal names became part of the answer. Scripture does not fill in every detail for us, so we should be careful not to be dogmatic where the text is quiet. But the picture is still striking. God gave guidance in a setting connected to priesthood, covenant, and the tribes of His people.

Now come back to Revelation 21.

John sees twelve precious stones again, not on a breastplate now, but in the very foundations of the city. That is not accidental. It reaches back into the story of redemption and reminds us that the Lord has always loved to work among His people, through His people, and in the midst of gathered people. There is wisdom in that for us today.

So many believers get vulnerable right here. They begin to think they can sort everything out on their own. They withdraw a little. Then a little more. Prayer grows thin. Fellowship becomes occasional. Counsel is avoided. Isolation starts to feel easier than openness. But isolation is one of the enemy’s favorite tools. If he can get a believer cut off from the rest of the body, he can often cloud that believer’s thinking. Confusion grows faster in the dark.

You see it all the time. A man pulls away from fellowship and suddenly every thought in his head feels right. A woman stops walking closely with other saints and the burdens she carries start talking louder than Scripture. Left alone, we can convince ourselves of almost anything. We can baptize our fear, defend our resentment, justify our compromise, and call it wisdom.

But there is safety among the people of God.

Not because the church is flawless. It is not. Not because every believer always has the right answer. They do not. But because the Lord often gives perspective through the body. A brother may steady you with a verse. A sister may see what you cannot see because your heart is too heavy. A praying friend may quietly confirm what God has already been stirring in you. Sometimes the clearest direction comes, not in lonely independence, but while walking in fellowship.

That fits the picture here. The city has walls, and now we see that those walls rest on jeweled foundations. There is beauty there, but there is also a reminder. God’s people are not meant to live detached from one another. The tribes belonged together. The stones belonged together. The city itself is built with a togetherness that reflects the wisdom of God.

So when you do not know what to do, stay close to the Lord and stay close to His people. Do not disappear when you are confused. Do not retreat when you are hurting. Do not isolate when you are vulnerable. Some of the clearest guidance God gives comes while you are worshiping with the saints, praying with the saints, opening the Word with the saints, and simply being known by the saints.

John is showing us heaven, but heaven has a way of teaching us how to live now. These shining foundations remind us that the safest place is still inside what God is building. Stay near the Lord. Stay near His people. There is help there. There is strength there. There is often direction there too.