Source: https://www.bertha-dudde.org/en/proclamation/4939
4939 "In the name of Jesus Christ...." teachings....
July 20, 1950: Book 56
Whenever you teach in My name you teach correctly.... Yet it is not enough to merely mention My name, which can also be pronounced by anyone who does not have living faith in Me, but in spirit and in truth you must call Me to you, then you will also speak in My name, and your words will be right, your thinking will correspond to the truth, and you yourselves will be fully convinced of what you speak, thus you will also be able to successfully instruct your fellow human beings. But you must never exclude me.... Hence you should bring the gospel to people in the name of Jesus Christ, you should act as My messengers and try to make your mission credible to people by conveying the word which you receive directly from Me. You should speak in My name and glorify My name again by reporting My extraordinary working in and on you, so that fellow human beings will also learn to believe with conviction. You shall carry My gospel out into the world.... as true messengers of Me you shall preach love and also practice it yourselves in order to give evidence of the strength of love to all who are of good will. For the teaching of love has to be proclaimed again, just as I Myself taught it on earth. And therefore My spirit must be able to be active in you, I Myself must be able to dwell with you through your will. As soon as you devoutly speak My name I will be with you, and then everything will be guided and directed by Me, then you will be true disciples who will fulfil their task with My assistance, that is, who will spread the gospel amongst people. If you speak to them in My name, then the words are addressed by Me Myself to fellow human beings, then they will not fail to have an effect, for the willing human being recognizes My voice and is also touched by it because he feels that they are not human words but God’s words. You should never speak on your own initiative but always start the conversation in My name and you will be amazed at the success and effect of your speeches on the listener. For where I dwell through your will success is truly also guaranteed, even if it is not immediately recognizable, yet the words retain their effect and again and again enter the thoughts of the one to whom they apply with clarity. My name has great strength, and blessed is he who makes use of this strength....
Amen
Translated by Doris Boekers