Satan blurs people’s view of Jehovah. After the death of Jesus’ apostles, some who claimed to be Christians began to spread false teachings. (Acts 20:29, 30) These apostates started to blur the identity of the only true God. For example, they stopped using the divine name in their copies of the Bible and preferred such expressions as “Lord.” By removing God’s personal name and replacing it with “Lord,” they made it difficult for a Bible reader to see how Jehovah is different from the other “lords” mentioned in the Scriptures. (1 Cor. 8:5) They used the same term, “Lord,” for Jehovah and for Jesus, making it difficult to understand that Jehovah and his Son are different individuals with distinct positions. (John 17:3) This confusion contributed to the development of the doctrine of the Trinity​—a doctrine not taught in God’s Word. As a result, many see God as mysterious and believe that we cannot know him. What a lie!​—Acts 17:27. w19.06 5 ¶11

One way to accomplish our ministry more fully is by improving our skills in the preaching work. (Prov. 1:5; 1 Tim. 4:13, 15) How privileged we are that Jehovah allows us to be his “fellow workers”! (1 Cor. 3:9) When you “make sure of the more important things” and focus on the Christian ministry, you will “serve Jehovah with rejoicing.” (Phil. 1:10; Ps. 100:2) As one of God’s ministers, you can be confident that he will give you the power you need to accomplish your ministry no matter what challenges or limitations you may face. (2 Cor. 4:1, 7; 6:4) Whether your circumstances allow you to have a small or a great share in witnessing, you can “have cause for rejoicing” when you are whole-souled in your ministry. (Gal. 6:4) When you fully accomplish your ministry, you show your love for Jehovah and for your fellow man. “By doing this you will save both yourself and those who listen to you.”​—1 Tim. 4:16. w19.04 6 ¶15; 7 ¶17

A major way in which Satan and the demons try to mislead people is through spiritism. Those who practice spiritism claim to know or control things that humans cannot normally know or control. For example, some claim to be able to know the future by using divination or astrology. Others may act as though they were speaking to those who have died. Some practice witchcraft or magic, and they may try to cast a spell on another person. A survey conducted in 18 countries in Latin America and the Caribbean found that about a third of the people surveyed believe in magic, witchcraft, or sorcery, and nearly as many believe that it is possible to communicate with spirits. Another survey was conducted in 18 countries in Africa. There, on average, more than half of the people surveyed say that they believe in witchcraft. Of course, wherever we live, we must be on guard against spiritism. w19.04 20-21 ¶3-4