Romans 12:3-8

For by the grace [of God] given to me I say to everyone of you not to think more highly of himself [and of his importance and ability] than he ought to think; but to think so as to have sound judgment, as God has apportioned to each a degree of faith [and a purpose designed for service]. For just as in one [physical] body we have many parts, and these parts do not all have the same function or special use, so we, who are many, are [nevertheless just] one body in Christ, and individually [we are] parts one of another [mutually dependent on each other]. Since we have gifts that differ according to the grace given to us, each of us is to use them accordingly: if [someone has the gift of] prophecy, [let him speak a new message from God to His people] in proportion to the faith possessed; if service, in the act of serving; or he who teaches, in the act of teaching; or he who encourages, in the act of encouragement; he who gives, with generosity; he who leads, with diligence; he who shows mercy [in caring for others], with cheerfulness.