God bottles them!

(Thomas Watson, "A Plea for the Godly")

Holy tears are the precious ointment which distills
from the trees of righteousness. Mary Magdalene
stood at Christ's feet weeping. Her tears dropped
as diamonds from her eyes!

The tears of the wicked are good for nothing. They
are either carnal—they weep for worldly losses; or
spurious—they are more troubled for hell, than sin!
There is water in their eyes—because there is fire in
their bones.

But the tears of a true penitent are precious. They drop
from the eyes of faith and hope. They are purifying tears.
The holy mourner weeps out sin. They are so precious—
that God bottles them! "You keep track of all my sorrows.
You have collected all my tears in Your bottle. You have
recorded each one in Your book!" Psalm 56:8. In the
Hebrew it is "my tear"—to show that God takes notice
of every tear!

Though holy tears are silent—yet they have a voice. "The
Lord has heard the voice of my weeping!" Psalm 6:8

Though our tears fall to the earth—yet they reach heaven!