Charles Spurgeon Commentary Matthew 1:3-4

"and Judah begat Perez and Zerah of Tamar; and Perez begat Hezron; and Hezron begat Ram; and Ram begat Amminadab; and Amminadab begat Nahshon; and Nahshon begat Salmon;" — Matthew 1:3-4 (ASV)

Observe the dash of unclean blood which enters the stream through Judah’s incest with Tamar. O Lord, you are the sinner’s Friend!