The followers of Jesus were convinced who he was and why his task given to them was so important. They continued bringing without letup teaching and declaring the good news about the Christ, Jesus, and asked their pupils and converted followers to do so too. Coming closer to the end times it is even more important because the world shall not be interested in God and many brought away from the Only One true God, by false preachers and mega churches.
It is striking that there are a lot of people in the world who are opposed to those who worship Jehovah as their only true God. The vast majority of those anti-Jehovah people come from extreme right-wing groups and fundamentalist or very conservative Christian groups.
Often a lot of people do not know to differentiate between Christendom, Christianity, religiosity and even limit religiousness to Christians, forgetting that there are many other religious groups who have all sorts of worship.