Which Gospel has The Sermon on the Mount?

A:The 'Sermon on the mount' is in Matthew's Gospel. The equivalent passage in Luke's Gospel is known as the 'Sermon on the plain'. Scholars say the reason for this is that both evangelists relied on sayings material from the hypothetical 'Q' document, but that Q provides no context for the sayings attributed to Jesus. The authors of Matthew and Luke created their own background contexts whenever using sayings from Q.