Brother Lawrence expressed the highest moral wisdom when he testified that if he stumbled and fell he turned at once to God and said, "O Lord, this is what You may expect of me if You leave me to myself." He then accepted forgiveness, thanked God and gave himself no further concern about the matter.
A world left to itself will sin. We know this, and it raises some alarm in us--as it should. But we learn that we too are weak, so we turn to our God for help and then, burdened, pass along that same hope to others in word and prayer.
Let us be alarmed and saddened at sin. We who are children of the only "Change-Agent" in the universe must not relinquish our positions to others who have no concern for the greater glory of God. So, while there is a weariness that occasionally overtakes us, it's a blessed weariness in light of the glory that is coming!