Noah Webster's Dictionary 1. (a.) Acting; -- opposed to patient, or sustaining, action. 2. (n.) One who exerts power, or has the power to act; an actor. 3. (n.) One who acts for, or in the place of, another, by authority from him; one entrusted with the business of another; a substitute; a deputy; a factor. 4. (n.) An active power or cause; that which has the power to produce an effect; as, a physical, chemical, or medicinal agent; as, heat is a powerful agent.

Multi-Version Concordance Agent (4 Occurrences) Romans 13:4 for he is a servant of God to you for good. But if you do that which is evil, be afraid, for he doesn't bear the sword in vain; for he is a servant of God, an avenger for wrath to him who does evil. (See NIV) Galatians 2:17 But if while we are seeking in Christ acquittal from guilt we ourselves are convicted of sin, Christ then encourages us to sin! No, indeed. (See RSV) Nehemiah 11:24 Pethahiah the son of Meshezabel, of the children of Zerah the son of Judah, was at the king's hand in all matters concerning the people. (See NIV) Isaiah 28:2 See, the Lord has a strong and cruel one; like a rain of ice, a storm of destruction, like the overflowing of a strong river, he will violently overcome them. (See NAS)