God bottles every tear!

(Thomas Watson, "Body of Divinity")

Is God a God of infinite knowledge? This is comfort
to the child of God. Christian, you set hours apart for
God, your thoughts run upon Him as your treasure;
God takes notice of every good thought! "He had a
book of remembrance written for those who thought
upon His name." You enter into your closet, and pray
to your Father in secret; He hears every sigh and
groan! "My groaning is not hidden from You." You
water the seed of your prayer with tears—God bottles
every tear! "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

The infiniteness of God's knowledge is a comfort, in
the case of saints who have not a clear knowledge of
themselves. They find so much corruption—that they
judge they have no grace. "If it is so—why am I thus?
If I have grace, why is my heart in so dead and earthly
a frame?" Oh remember, God is of infinite knowledge.
He can spy grace where you cannot; He can see grace
hidden under corruption, as the stars may be hidden
behind a cloud. God can see that holiness in you, which
you can not discern in yourself. He can spy the flower
of grace in you, though overtopped with weeds.

"Because there is some good thing in him." God sees
some good thing in His people—when they can see no
good in themselves; and though they judge themselves
harshly, He will forgive their sins and infirmities.