The Fellowship of His Sufferings

"The Son of God suffered unto the death, not that men might not suffer, but that their sufferings might be like His." 

George MacDonald, Unspoken Sermons, First Series. Quoted by C.S. Lewis in, The Problem of Pain.

Philippians 3:10; Colossians 1:24; 2 Corinthians 1:3 - 11; 1 Peter 2:21 - 24; 4:1 - 2; 4:12 - 14.

How is Jesus Christ calling us to enter into and experience His sufferings? How is He calling our churches to enter into His sufferings?