The anti-Christ presents no personal threat to the individual with a strong testimony. What a great example that Jacob could not be shaken. We should be diligently engaged in strengthening our testimonies so that we cannot be shaken by the anti-Christs of today. Jacob must have found it funny that Sherem thought he could actually shake him from the faith. Jacob goes on to discuss the many revelations which he had received. He also saw angels and heard the voice of the Lord. Earlier, Lehi stated that Jacob had been visited by the Lord, thou hast beheld in thy youth his glory; wherefore, thou art blessed (2 Nephi 2:4).
Nevertheless, the strongest testimonies come through the power of the Holy Ghost not by visions, revelations, and divine interventions. The lives of Oliver Cowdery, David Whitmer, Sidney Rigdon, and others are ample evidence that seeing an angel or a vision is not enough. Memories and convictions can fade with time but the most enduring strength comes through the Holy Ghost. This is what the Savior was referring to when he told Peter, Blessed art thou, Simon Bar-jona: for flesh and blood hath not revealed it unto thee, but my Father which is in heaven (Matt 16:17).
Heber J. Grant
"Many men say: 'If I could only see an angel, if I could only hear an angel proclaim something, that would cause me to be faithful all the days of my life!' It had no effect upon these men (Laman and Lemuel) that were not serving the Lord, and it would have no effect today." (Conference Report, Apr. 1924, p. 159)
Elder David H. Cannon
"Ask a man the question how he knows the gospel to be true. Ask him. 'Did you ever see an angel?' 'No.' 'Did you ever see any one raised from the dead? You speak of the resurrection of the dead; have you ever seen anybody that was resurrected?' 'No.' 'How do you know that this gospel is true? What demonstration have you had to satisfy you?' I never have had any miraculous manifestation, but I will tell you what I have had: I have endeavored to render myself obedient to the requirements of the gospel, and as I have done so the Spirit of God has testified to me of its divine authenticity. Any principle that has been revealed from the earliest times until the present, as I have tried to render myself obedient to its requirements, God has given me a testimony regarding it, and my heart and my soul have been satisfied. The hope that is firmly implanted in my heart becomes brighter and stronger as I proceed to render obedience to the requirements made by the gospel through the servants of God." (Conference Report, Oct. 1912, p. 91)