Wow! This is from the James Montgomery Boice Commentary set I just bought for Logos.
“Obviously we are not loved because we are lovable, for we are not. It is true that some of us may be lovable to some others of us, but this is only when we look at the matter from a human perspective. From God’s perspective there is nothing in us to make us even remotely desirable. He is holy; we are unholy. He is just; we are unjust. He is loving; we are filled with hatred and all forms of sin. In short, we are sinful and in willful rebellion against him. Yet he loves us. In fact, this is so great a marvel that God even uses it to commend his love to us. He says, “You see, at just the right time, when we were still powerless, Christ died for the ungodly. Very rarely will anyone die for a righteous man, though for a good man someone might possibly dare to die. But God demonstrated his own love for us in this: While we were still sinners, Christ died for us” (Rom. 5:6–8).
God has not loved us because we first loved him; he is not merely returning our love. We did not love him. On this point the apostle John writes clearly, “This is love, not that we loved God, but that he loved us and sent his Son as an atoning sacrifice for our sins” (1 John 4:10).
Again, the Lord did not love us because of anything that we could do for him, for we had nothing to offer. He does not need praise; the angels praise him. He does not even need spiritual children; for, as Jesus said, he is able of stones to raise up children to Abraham. Even our numbers are not an asset. So why does God love us? The only answer is the one he gave Moses concerning the children of Israel. “The LORD did not set his affection on you and choose you because you were more numerous than other peoples, for you were the fewest of all peoples. But it was because the LORD loved you and kept the oath he swore to your forefathers” (Deut. 7:7–8). The reason God loves us is that he loves us. Beyond that, his love is unexplainable. It is without reason, at least without reason known to us.”
Boice, J. M. (2005). The Gospel of John: An expositional commentary (1001–1002). Grand Rapids, MI: Baker Books.