The power of salvation is the power of the resurrection. Jesus said: "Verily, verily, I say unto you, The hour is coming, and now is, when the dead shall hear the voice of the Son of God, and they that hear shall live." (John 5:25)
This agrees with the striking words of the Lord by the prophet Isaiah: "Incline your ear, and come unto me; hear, and your soul shall live." (Isaiah 55:3)
Those who hear the voice of the Son of God will live by the power of the endless life which the Father has given the Son to have in himself: "For as the Father has life in himself; so has He given to the Son to have life in himself." (John 5:26)
But how may we know that such a wonderful thing as changing a man from the death of sin to the life of righteousness can be accomplished? "Marvel not at this, for the hour is coming, in which all that are in the graves shall hear His voice, And shall come forth." (John 5:28-29)
The power by which men are made righteous now is the power by which those who are in the graves will be raised at the last day. And that this can and will be done is assured by the fact that: "Now is Christ risen." (1 Corinthians 15:20)
Every Gospel messenger is therefore simply a witness to the resurrection of Jesus. Do you know that Christ is risen from the dead? If so, how?--Present Truth, November 25, 1897--Timeline: III-10 (Rejection by the Sanhedrin)--John 5:25-29.