When people give testimony in a trial, the court asks them to swear or affirm they will tell the truth. The purpose is to foster fairness in the outcome of the trial. But why would God take an oath? The book of Hebrews tells us that God took an oath after making a promise to Abraham. We read in Hebrews Chapter 6: “Since there was no one greater to swear by, God took an oath in his own name, saying, “I will certainly bless you, and I will multiply your descendants beyond number.” Then Abraham waited patiently, and he received what God had promised. Now when people take an oath, they call on someone greater than themselves to hold them to it. And without any question that oath is binding. God also bound himself with an oath, so that those who received the promise could be perfectly sure that he would never change his mind. So God has given both his promise and his oath. These two things are unchangeable because it is impossible for God to lie. Therefore we who have fled to him for refuge can have great confidence as we hold to the hope that lies before us.” People who entrust their lives to God and His Son have a sure foundation for their faith. Since their eternal future is secure, they can use their time, talent, and money to make a difference in our world—for Christ and His kingdom.