Adam and Seth, and the True Cross
The Legend of the true cross is a part of the Golden Legend. Adam, on his death-bed, sent his son Seth to the Archangel Michael imploring him to bring back the promised oil of mercy, hoping to save his life. Seth only managed to obtain a few seeds of the tree of knowledge. On his return he found Adam already dead, so he placed the seeds under his father’s tongue, and from these grew a large tree.