To set us free from sin and death, Jehovah arranged for Jesus to provide the ransom. But how could the sacrifice of one perfect human redeem millions of people? The apostle Paul explains: “Just as through the disobedience of the one man [Adam] many were made sinners, so also through the obedience of the one person [Jesus] many will be made righteous.” (Rom. 5:19; 1 Tim. 2:6) In other words, it took one disobedient perfect man to cause us to become enslaved to sin and death. Therefore, it took one obedient perfect man to set us free. Couldn’t Jehovah have simply decided to allow righthearted members of Adam’s offspring to live forever? To imperfect humans, that would seem to be the kind and reasonable thing to do. But it does not take into account Jehovah’s perfect justice. Because Jehovah is just, he would never choose to ignore Adam’s glaring act of disobedience. w25.01 21 ¶3-4

At one point, the apostle Paul knew that he would soon be put to death, but he had every reason to feel satisfied with his life. Looking back, he could say: “I have run the race to the finish, I have observed the faith.” (2 Tim. 4:6-8) Paul had made wise decisions in his Christian ministry, and he felt sure that Jehovah was happy with him. We too want to make good decisions and have God’s approval. How can we do so? Paul said about himself and other faithful Christians: “We are walking by faith, not by sight.” In the Bible, “walking” sometimes refers to the way a person chooses to live his life. When a person walks by faith, he makes decisions based on his trust in Jehovah God. His actions show that he is convinced that God will reward him, that he will benefit from following Jehovah’s advice found in His Word.​—Ps. 119:66; Heb. 11:6. w25.03 20 ¶1-2

With the help of God’s spirit, many who formerly had beastly personalities have made remarkable changes in their life. (Isa. 65:25) They have tamed their former undesirable traits. (Eph. 4:22-24) Granted, God’s people are still imperfect, so we will continue to make mistakes. However, Jehovah has united “all sorts of people” in an unbreakable bond of love and peace. (Titus 2:11) This is a miracle that only the almighty God could perform! His words always come true. (Isa. 55:10, 11) The spiritual paradise is already a reality. Jehovah has created a brotherhood that is truly unique. Among his people, we can find relative peace and enjoy a safe oasis in a violent world. (Ps. 72:7) For these reasons, we want to help as many as possible to join us in our Christian brotherhood. We can do this by focusing on making disciples.​—Matt. 28:19, 20. w24.04 23 ¶13, 15