Satan can imitate Christ. He will personate the second coming of Jesus and deceive, if possible, even the very elect. Satan appears as an angel of light. He blesses and heals and enlightens. But the fruit of believing in his counterfeit is unrest.

GC 532
But what did Adam, after his sin, find to be the meaning of the words, "In the day that thou eatest thereof thou shalt surely die"? Did he find them to mean, as Satan had led him to believe, that he was to be ushered into a more exalted state of existence? Then indeed there was great good to be gained by transgression, and Satan was proved to be a benefactor of the race. But Adam did not find this to be the meaning of the divine sentence. {GC 532.2}

GC 552
He has power to bring before men the appearance of their departed friends. The counterfeit is perfect; the familiar look, the words, the tone, are reproduced with marvelous distinctness. Many are comforted with the assurance that their loved ones are enjoying the bliss of heaven, and without suspicion of danger, they give ear "to seducing spirits, and doctrines of devils." {GC 552.1}

GC 589
Through spiritualism, Satan appears as a benefactor of the race, healing the diseases of the people, and professing to present a new and more exalted system of religious faith; but at the same time he works as a destroyer. {GC 589.1}

The evidence that Jesus is not an imposter, is not an impotent god, is seen in the changed lives of those who love and serve Him. "Ye are my witnesses, saith the LORD, that I am God." (Isa 43:12)

Nicely said, John.

Amen!