There are only three kinds of Christians when it comes to world missions: zealous goers, zealous senders, and disobedient.
John PiperI've never heard anyone say the really deep lessons of life have come in times of ease and comfort. But, I have heard many saints say every significant advance I've ever made in grasping in the depth of God's love and growing deep with Him, have come through suffering.
John PiperWithout extended, concentrated prayer, the ministry of the Word withers. And when the ministry of the Word declines, faith (Rom. 10:17; Gal. 3:2, 5) and holiness (John 17:17) decline. Activity may continue, but life and power and fruitfulness fade away. Therefore, whatever opposes prayer opposes the whole work of ministry.
John PiperThe evil and suffering in this world are greater than any of us can comprehend. But evil and suffering are not ultimate. God is. Satan, the great lover of evil and suffering, is not sovereign. God is.
John PiperGod will not turn away from doing you good. He will keep on doing good. He doesn't do good to His children sometimes and bad to them other times. He keeps on doing good and He never will stop doing good for ten thousand ages of ages. When things are going bad that does not mean God has stopped doing good. It means He is shifting things around to get them in place for more good, if you will go on loving Him.
John Piper