Alma 37

Nephi records of the Liahona -

"...a round ball of curious workmanship; and it was of fine brass. And within the ball were two spindles; and the one pointed the way whither we should go into the wilderness."  (1 Nephi 16:10)

At times, I have wondered what the other spindle did.

Alma tells Helaman that the  -

"...Liahona, which is, being interpreted, a compass; and the Lord prepared it.
39 And behold, there cannot any man work after the manner of so curious a workmanship. And behold, it was prepared to show unto our fathers the course which they should travel in the wilderness.
40 And it did work for them according to their faith in God; therefore, if they had faith to believe that God could cause that those spindles should point the way they should go, behold, it was done; therefore they had this miracle, and also many other miracles wrought by the power of God, day by day."  (Alma 37:38–40)

The thought came to me as I read this morning was the other spindle did the same thing as a confirmation or witness to the first spindle.  This  would give assurance that the Liahona was working according to their faith.