Barth on Penal Substitutionary Atonement
“The Son of God in His unity with the Israelite Jesus exists in direct and unlimited solidarity with the representatively and manifestly sinful humanity of Israel. Everything which can be said against it, everything which is said against it, not by men, but by God speaking through His prophets—He allows to be said against Him.”
[Karl Barth, Church Dogmatics IV/1, 172]