Why is the message of the cross considered foolishness to some?

The Apostle Paul explains in 1 Corinthians 1:18 that the preaching of the cross is viewed as foolishness by those who are perishing, but to those who are being saved, it is the power of God. This dichotomy highlights the spiritual blindness that exists in fallen humanity, which cannot comprehend the divine wisdom of salvation through a crucified Messiah. The cross, a symbol of shame and defeat in the world's eyes, becomes the ultimate triumph of God’s grace and power for those whom He has called. This reality underscores the need for divine illumination through the Holy Spirit for one to grasp the significance of the cross.