Many a man begins a religious life full of warmth and zeal, and by and bye loses all his first love, and turns back again to the world. He liked the new uniform, and the bounty money, and the name of a Christian soldier. – He never considered the watching, and warring, and wounds, and conflicts, which Christian soldiers must endure. Let us never forget this lesson. It need not make us afraid to begin serving Christ, but it ought to make us begin carefully, humbly, and with much prayer for grace. If we are not ready to take part in the afflictions of Christ, we must never expect to share His glory.
J.C. Ryle, Expository Thoughts on Luke, at 340 (commenting on Luke 9:57-58)