It's not white magic; it's not magic at all. It's Our Lord Jesus Christ choosing to use material things of this world to effect a miracle. And it's very Biblical. When Christ healed the blind man in John 9, he used mud and spittle and the pool of Siloam. Why the mud, why the spittle? Couldn't Christ have healed him instantly as the centurion's servant? "Only say the word, and my servant shall be healed". Was Christ using magic?
And then there's Acts 19:11-12:
And God wrought special miracles by the hands of Paul: So that from his body were brought unto the sick handkerchiefs or aprons, and the diseases departed from them, and the evil spirits went out of them.Handkerchiefs touched to Paul's body were healing people and casting out evil spirits. Was Paul using magic?
Jesus is not walking on the earth, and Paul died years ago. Justification by men does not constitute approval by God.