Decoding and analyses of the paintings “Baptism of the Christ” by Tintoretto (1518-1594) combined with decoding of his paired paintings “The Evangelists Mark and John” and “The Evangelists Luke and Matthew” (1557). Connection with the context of the Verrocchio/Da Vinci project (1472-1498) about beginnings of Christianity in the paintings by Jacopo Tintoretto. Probable relation of the paintings by Tintoretto to the paintings “Baptism of the Christ” by Giorgio Vasari, “Sistine Madonna” and “School of Athens” by Raphael and painting “The Wedding Feast at Cana” by Paolo Veronese, along with “Last Supper” by Leonardo.