‘But how is one to tell whether it be in truth the spirit of God that is speaking in a man?’
You are not called upon to tell. The question for you is whether you have the spirit of Christ yourself. The question is for you to put to yourself, the question is for you to answer to yourself: Am I alive with the life of Christ? Is his spirit dwelling in me? Everyone who desires to follow the Master has the spirit of the Master, and will receive more, that he may follow closer, nearer, in his very footsteps. He is not called upon to prove to this or that or any man that he has the light of Jesus; he has to let his light shine.