Charles Spurgeon Commentary Zechariah 11:5

"whose possessors slay them, and hold themselves not guilty; and they that sell them say, Blessed be Jehovah, for I am rich; and their own shepherds pity them not." — Zechariah 11:5 (ASV)

They bound heavy burdens upon them, grievous to be borne, but they did not touch them with one of their fingers. The Scribes and Pharisees were false shepherds, and had completely departed from God in the time of our Lord.