In fact, these three words, “It is finished”, come from one Greek word teleo. In the days of Jesus, a servant would use it when reporting to his master: “I have completed the work assigned to me.” (John 17:4) The word means, “It is finished, it stands finished and it will always be finished!” Perhaps the most significant meaning of teleo is how it is used by merchants: “The debt is paid in full!” When Jesus gave Himself on the cross, He met fully the righteous demands of the law. He paid our debts in full!
Today, it is not our works that will bring us the blessings. It is Christ’s finished work. Christian living is not about doing, but believing in His finished work. Under the law, we must do. Under grace, it is done!
— Joseph Prince