“As one of them was cutting down a tree, the axhead fell into the water, and he cried out: ‘Alas, my master, it was borrowed!’ The man of the true God said: ‘Where did it fall?’ So he showed him the place. He then cut off a piece of wood and threw it there and made the axhead float. He said: ‘Lift it out.’ So he reached out his hand and took it.”
~2 Kings 6:5-7

Jehovah allowed Elisha to carry out this miracle of retrieving the axhead from the river bottom.
What was so important about an axhead?
Elisha must have been concerned with the prophets’ reputation and did not want anyone to criticize their sacred work.
This teaches us that we should return what we borrow or pay back what we owe to avoid becoming a stumbling block for others’ faith (Matt. 18:7).