Every time we look at the cross Christ seems to say to us, 'I am here because of you. It is your sin I am bearing, your curse I am suffering, your debt I am paying, your death I am dying.' Nothing in history or in the universe cuts us down to size like the cross.
These then are the marks of the ideal Church - love, suffering, holiness, sound doctrine, genuineness, evangelism and humility. They are what Christ desires to find in His churches as He walks among them.
If the first mark of a true and living church is love, the second is suffering. The one is naturally consequent on the other. A willingness to suffer proves the genuineness of love.