By A.W. Tozer
It was not to the unregenerate that the words "Do not fret" were spoken, but to God-fearing persons capable of understanding spiritual things. We Christians need to watch and pray lest we fall into this temptation and spoil our Christian testimony by an irritable spirit under the stress and strain of life.
It requires great care and a true knowledge of ourselves to distinguish a spiritual burden from religious irritation. We cannot close our minds to everything that is happening around us. We dare not rest at ease in Zion when the church is so desperately in need of spiritually sensitive men and women who can see her faults and try to call her back to the path of righteousness. The prophets and apostles of Bible times carried in their hearts such crushing burdens for God's wayward people that they could say, "My tears have been my food day and night" (Psalm 42:3), and "Oh that my head were a spring of water and my eyes a fountain of tears! I would weep day and night for the slain of my people" (Jeremiah 9:1). These men were heavy with a true burden. What they felt was not vexation but acute concern for the honor of God and the souls of men.
By nature some persons fret easily. They have difficulty separating their personal antipathies from the burden of the Spirit. When they are grieved they can hardly say whether it is a pure and charitable thing or merely irritation set up by other Christians having opinions different from their own.