In 2 Corinthians 1:3-7 the Apostle Paul teaches this very concept to the people in the church in Corinth,
3 Blessed be the God and Father of our Lord Jesus Christ, the Father of mercies and God of all comfort,4 who comforts us in all our affliction, so that we may be able to comfort those who are in any affliction, with the comfort with which we ourselves are comforted by God.5 For as we share abundantly in Christ's sufferings, so through Christ we share abundantly in comfort too.6 If we are afflicted, it is for your comfort and salvation; and if we are comforted, it is for your comfort, which you experience when you patiently endure the same sufferings that we suffer.7 Our hope for you is unshaken, for we know that as you share in our sufferings, you will also share in our comfort.Paul writes that Christian brothers and sisters receive the comfort of God in our troubles, so that we may comfort others in their time of trouble. This is a key aspect of the Christian experience and life. All that we receive from God is to flow through our lives into the lives of others. Christians are to be pipelines of Jesus' love and grace and mercy and comfort to one another. It began in Genesis 12 when God tells Abraham, "I will bless you so that you may be a blessing" and the moment our pipeline is capped and the works of God dead-end on us, we cease to function fully as God intended.