Those who sow in tears

Psalm 126:5 (NKJV) Those who sow in tears Shall reap in joy.

Notes from Charis Bible College IN - Dr. Delron Shirley Class "Passion for the Harvest" -
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Sowing in tears means your sacrifice cost you something.

King David would NOT sacrifice (sow) anything to the Lord that did NOT cost him something.
See 2 Samuel 24:18-24 (NIV)David Builds an Altar

Sowing in tears also means it is a valuable seed!  It is tough to part with. 

God looks on the heart of the sower and rewards him accordingly.