From Paul Tripp Ministries blog,
"Wait for the Lord; be strong and take heart and wait for the Lord."
What causes a person to lose heart? What makes a person want to give up? Why do we ever entertain fantasies of running away? What causes us to have little enthusiasm for what we once found very motivating?
Your motivation to continue is only as strong as what you've placed your hope in. Perhaps this is why we so easily lose heart in the face of obstacles, opposition, or difficulty. Perhaps what we've unwittingly done is to have tried to build our reason to continue on the shifting sand of flawed and impermanent things that were never meant to be the foundation of our meaning and purpose or inner sense of well-being. No human being is capable of carrying your hope. This side of heaven we're all weak and flawed in some way. No circumstance can carry your hope. Every situation you're in is in someway touched by the brokenness of the fall and isn't under your control. Amassing physical pleasures and possessions won't give you lasting hope. For all of their momentary enjoyment, they fill the sense, but do not satisfy the heart. When you look horizontally for your reason to continue you'll inevitably end up losing hope.
Click here for his advice on the one true motivation...