"When principles that run against your deepest convictions begin to win the day, then battle is your calling, and peace has become sin; you must, at the price of dearest peace, lay your convictions bare before friend and enemy, with all the fire of your faith." (Dutch statesman and theologian, Abraham Kuyper)
The painting is “Knight at the Crossroads” by Russian artist Victor Vasnetsov (1848-1926)