Exodus 25:15 "The poles shall be in the rings of the ark; they shall not be taken from it"

The "Aron", the "Ark of the Covenant" contained the Torah and the Ten Commandments.

This ark was placed in the "Holy of Holies".

Sometimes, the ark had to be moved or carried.

In the Mishkan, the temporary Sanctuary in the desert, the ark had to be transferred as the Jewish people moved from one place to another.

In the Beit HaMikdash, there were also times that it had to be moved.

Rings were placed on the sides of the ark and two long poles were inserted through the rings.

When the ark had to be moved, the poles were lifted in order to carry it. We are commanded not to remove the poles from these rings, even when the ark remains in one place.