Let Us Fix Our Eyes On Jesus

Therefore, since we are surrounded by such a great cloud of witnesses, let us throw off everything that hinders and the sin that so easily entangles, and let us run with perseverance the race marked out for us. Let us fix our eyes on Jesus, the author and perfecter of our faith, who for the joy set before him endured the cross, scorning its shame, and sat down at the right hand of the throne of God. Consider him who endured such opposition from sinful men, so that you will not grow weary and lose heart.
In your struggle against sin, you have not yet resisted to the point of shedding your blood. And you have forgotten that word of encouragement that addresses you as sons:
“My son, do not make light of the Lord’s discipline,
and do not lose heart when he rebukes you,
because the Lord disciplines those he loves,
and he punishes everyone he accepts as a son.”
Endure hardship as discipline; God is treating you as sons. For what son is not disciplined by his father? If you are not disciplined (and everyone undergoes discipline), then you are illegitimate children and not true sons. Moreover, we have all had human fathers who disciplined us and we respected them for it. How much more should we submit to the Father of our spirits and live! Our fathers disciplined us for a little while as they thought best; but God disciplines us for our good, that we may share in his holiness. No discipline seems pleasant at the time, but painful. Later on, however, it produces a harvest of righteousness and peace for those who have been trained by it.
Therefore, strengthen your feeble arms and weak knees. (Hebrews 12:1-12)

From Isobel Kuhn's In The Arena:
On the ship on the way to China, a veteran missionary was meeting with the new girls going over, and one day she said, “Girls, when you get to China, all the scum of your nature will rise to the top.” Isobel “was shocked. Scum? Was that not a strong word? All of us were nice girls, were we not? Scum? A bit extravagant surely. And so I was totally unprepared for the revolt of the flesh which was waiting for me on China’s shores. The day was to come when on my knees in the Lord’s presence I had to say: ‘Lord, scum is the only word to describe me.’” 

to comfort all who mourn,
and provide for those who grieve in Zion—
to bestow on them a crown of beauty
instead of ashes,
the oil of gladness
instead of mourning,
and a garment of praise
instead of a spirit of despair.
They will be called oaks of righteousness,
a planting of the Lord
for the display of his splendor. (Isaiah 61:3)