1. Mark 15:21 (ESV)
  2. Exposition

Why are Alexander and Rufus mentioned?

Mark 15:21 (ESV)

21 And they compelled a passerby, Simon of Cyrene, who was coming in from the country, the father of Alexander and Rufus, to carry his cross.

Simon is identified as the father of Alexander and Rufus, presumably because they were known to the people when Mark wrote his Gospel.