Isaiah 17:10-11 KJV
Because thou hast forgotten the God of thy salvation, and hast not been mindful of the rock of thy strength, therefore shalt thou plant pleasant plants, and shalt set it with strange slips:
 In the day shalt thou make thy plant to grow, and in the morning shalt thou make thy seed to flourish: but the harvest shall be a heap in the day of grief and of desperate sorrow.
Isaiah must have had a lot of difficulty prophesying against all these nations. One time it was Assyria, another time it was Israel themselves. Then Philistia, Moab, and today Damascus. God must really be pissed off with a lot of people during his time.
Most of us today think of these as old testament palaver and so very far from us new testament folks. But listen, God’s words are eternal. No wonder Isaiah’s words in verse 11 of our scripture still happens today.
If you are toiling so hard and yet can not boast of a bountiful harvest, perhaps you may want to re-consider that relationship with Him. Do you REMEMBER the God of your salvation? Do you REMEMBER the source of your strength?
These pointers may look very trivial, but I believe our success here and the hereafter is a function of how much of Him we retain (remember) in us. May your memory of Him and the strength of His arm cause you to flourish now and evermore.
Have a blessed day.