The Cross!
For the message of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God.
1 Corinthians 1:18 NIV
There is something deep about the cross: it is the symbol of hate and love at the same time. It is the connection between death and life at the same time. It is the bridge between God and man; the highway of reconciliation which makes it possible for man to approach God. Why, then, is the message of the cross so offensive to people?
Could it be it is because the cross does not respect intelligence, wealth, connections or abilities. You do not come to the cross peading anything you have achieved or done; you do not come to the cross claiming rights or entitlements; all I could ever need was settled by the cross and all I am asked to do is simply believe and receive the fullness of the blessings the cross has sealed. It does not ask for anything else and it will certainly not take anything else.
That's why it is foolishness to those who are perishing. They cannot understand why there is no price or value demanded and why they cannot pay a high price for it. The cross makes nonsense of all of man's pride and achievements, and simply asks for faith and trust in what the cross accomplishes. For those who have experienced the power of the cross, they know it is God's power at work, able to wipe the slate clean, give a fresh start, guarantee a life of peace down here and bliss in eternity.
Note that being saved isn't just an event; it is a journey. You don't get it and relax; there is some working out to do. You do it in the power of the cross, and you can be certain that victory is sure. His time of favour is here.