Is the Church your rock?

In the past, I have made what was perhaps a natural assumption that the Church was my rock: my sure foundation which could never slip away, but things like the meeting I posted about previously are a valuable reminder to me of the scripture:

2 Samuel 22:2-3:

¶ And he said, The LORD is my rock, and my fortress, and my deliverer; The God of my rock; in him will I trust: he is my shield, and the horn of my salvation, my high tower, and my refuge, my saviour; thou savest me from violence.

I love God. I am happy that nothing in the world can ever take away my ability to communicate with Him who sitteth as the Judge Supreme.