My Musings – Testimony is a solemn declaration by a witness, a firsthand authentication of a fact. It is not information received from other people that cannot be adequately substantiated. That would be hearsay, which in a court of law, would be disallowed. John spent three years being taught (discipled) by Jesus. He was with Jesus 24/7 for those three years, which certainly put him in a position to see if Jesus’ talk was Jesus’ walk. He was at the foot of the cross when Jesus died and was able to see the Roman soldiers certify that He was in fact dead. On more than one occasion he saw and spoke to Jesus after His resurrection from the dead. In every respect, this is firsthand authentication of the facts. His testimony was corroborated by other witnesses. He was imprisoned because of his adherence to his testimony. Other witnesses were executed. John likely lived out his days under the same threat of death. None of these recanted.
In light of all this, John testimony proclaiming that “he who has the Son has life, he who does not have the Son does not have life,” is more than credible. It removes any reasonable doubt.
My Advice – Testimony demands a verdict. Deliberate carefully. It is an eternal life and death matter.