For you were going astray like sheep; but are now returned to the Shepherd and Overseer{"Overseer" is from the Greek episkopon, which can mean overseer, curator, guardian, or superintendent.} of your souls.
Paul speaks of Christ crucified, to the Jews foolishness -- I mean to the Greeks foolishness, but to the Jews an offence; "but unto us which are saved the power of God" ( 1 Corinthians 1:18 ). And so he is a "rock of offence even to them which stumble."