God comforts you in your tribulations so that you are to comfort others in their trials with the same comfort God comforted you.

II Corinthians 1:3-4 (KJV) – blessed be God, even the Father of our Lord Jesus Christ, the Father of mercies and the God of all comfort: who comforteth us in all our tribulation, that we may be able to comfort them which are in any trouble, by the comfort wherewith we ourselves are comforted of God.