The language is a bit archaic, but all these years later, the point C. S. Lewis made in 1952 stands:
On the whole, God’s love for us is a much safer subject to think about than our love for Him. . . . The great [important] thing to remember is that, though our feelings come and go, His love for us does not. It is not wearied by our sins, or our indifference; and, therefore, it is quite relentless in its determination that we shall be cured of those sins, at whatever cost to us, at whatever cost to Him. — C. S. Lewis 
 C. S. Lewis, “Charity,” in Mere Christianity (1952).