Joshua 4:8-9 read
8 So the Israelites did as Joshua commanded them. They took twelve stones from the middle of the Jordan, according to the number of the tribes of the Israelites, as the Lord had told Joshua; and they carried them over with them to their camp, where they put them down.
9 Joshua set up the twelve stones that had been in the middle of the Jordan at the spot where the priests who carried the ark of the covenant had stood. And they are there to this day. (NIV)
3 and tell them to take up twelve stones from the middle of the Jordan, from right where the priests are standing, and carry them over with you and put them down at the place where you stay tonight.” (NIV)
Verses 8 and 3 describe how the first pile of stones was taken from where the priests stood and placed in the Israelites' camp on dry ground. In verse 9, Joshua set up another twelve stones at the spot where the priests had stood. The scripture doesn't specify if God commanded this or if the stones were carried by representatives from each tribe. The phrase 'they are there to this day' at the end of verse 9 could refer to either pile of stones
Which pile of stones "are there to this day" in Joshua 4:9 refers to?