Tom Schreiner on Why the Cross is a Stumbling Block

"If righteousness comes by the law, then the goodness of human beings is celebrated and promoted. The cross, however, rejects any and all human attempts to be right with God. Righteousness is found only in what Christ Jesus has done for sinners. The message of the cross is a scandal or a stumbling block because it is an affront to human pride. Human beings take umbrage in being told that even their best works are stained with evil, that everything we do is insufficient to be right with God, and that the only basis for right-standing with God is the cross of Jesus Christ."

~ Tom Schreiner, Galatians