2 Corinthians 4:1

So since by the mercy of God I am engaged in this service, I never lose heart.

2 Corinthians 4:16

So I never lose heart. Though my outer nature is wasting away, my inner is being renewed every day.

Galatians 6:9

Let us not get tired of doing right, for at the proper time we shall reap, if we do not give out.

2 Thessalonians 3:13

But you, brothers, must not get tired of doing right.

Hebrews 12:3-5

Think of the opposition that he encountered from those sinners against themselves, if you would not grow weary and faint-hearted.

Treasury of Scripture Knowledge

Summary

Thou didst say, Woe is me now! for the LORD hath added grief to my sorrow; I fainted in my sighing, and I find no rest.

Bible References

I fainted

2 Corinthians 4:1
So since by the mercy of God I am engaged in this service, I never lose heart.
Galatians 6:9
Let us not get tired of doing right, for at the proper time we shall reap, if we do not give out.
2 Thessalonians 3:13
But you, brothers, must not get tired of doing right.
Hebrews 12:3
Think of the opposition that he encountered from those sinners against themselves, if you would not grow weary and faint-hearted.