Definition of a Christian:

“The Christian is not just a good, decent, moral man; the life of God had entered into him, there is an energy, a power, a life in him and it is that that makes him peculiarly and specifically Christian.” –  Martyn Lloyd-Jones

Opposition

“We are foolish to expect to serve God without opposition: the more zealous we are, the more sure we are to be assailed by the myrmidons of hell.” – C. H. Spurgeon