Jean-Marc Berthoud was born in 1939 in South Africa from Swiss missionary parents who originally hailed from Neuchâtel.
[1][2] Berthoud attended the University of the Witwatersrand in Johannesburg in the Republic of South Africa, where he obtained two Bachelors of Arts in History and English.
To support a large family, he worked as a gardener, then railroad porter, and finally as a part-time manual postal employee until retiring professionally in 2004.
Among his unpublished works are a multiple-volume study of The Ten Commandments in Their Exposition throughout Scripture and a Commentary on Ezekiel 1 to 24.
He presided over the Association Vaudoise de Parents Chrétiens and of the Association Création, Bible et Science, was the director of a collection of books, Messages, for the Éditions L’Age d’Homme, and ran a Christian bookshop, La Proue, for over twenty years.