Job in front of the peril of cruelty of suffering and sickness. Jeremiah face to face with the persecution and stubborness of his people. Realize that I suffer insult for your sake. Jesus in front of the lack of faith on his disciples. Jesus pities Jersusalem because it did not accept his message.
Discouragement has many roots.
You may be unjustly criticized. The fact that God promised us that what we do for him is going to bear fruit in its proper time, fills us with courage to continue our work as servants to others. I mean to deliver you from the hands of the wicked and redeem you from the clutches of the violent. After all, praise is an act of faith in God. Find another leader or leaders and share with them your difficulties.