Irish, first of all..did you actually see that? Second, of all, the term I used was not towards you but towards the source that influenced you to make doubt of the Holy Cross. Christ used that expression towards St. Peter when he tried to disuade Him from continuing His mission.
There should be no doubt in Christ's Cross. If a Christian cannot believe in the complete protection of the Cross, then he is not a Christian. Think about it. The Cross is our inheritence of our faith.
I'll share something with you. Once, a few years ago, I had one of the blessed eggs we get for Pascha. A year later, I had it with me and to make a point to my father (which I won't get into here), I peeled that egg and ate it. He was shocked. But, I put that egg in my mouth, not even looking at it's condition, but trusting in God's blessing and ate it. It was blessed by the priest with the sign of the Cross. You know what...I'm still here.
All faith should be with Christ. The Cross will save us from many circumstances. One other story. You might have read it already. My friend was in an accident and he ended up with 7 broken ribs. One punctured his lung. But, when he got out of the car, he crossed himself (the Orthodox way). The doctor took the X-ray and saw that the lung had been punctured but was healed. I guess there was a mark that he identified.
That's the power of the Cross and don't you forget it. It may say your life one day.