More likely than not, the preacher was referring to how even though the Lord loves every human being, His holiness prevents Him from entertaining the presence of sin, and He has sadly had to allow billions of people to spend eternity experiencing their living wish -- to not spend eternity with their Creator.

Human parents often look the other way when their children sin, thinking that because they "love" their kids, they should overlook those things.  God, in His perfect wisdom, knows that entertaining sin -- "looking the other way" -- only breeds more and more sin, and just like cancer, the only way to truly deal with it is to go in and deal with it, not ignore it.

If only we would do better to learn from God's type of love... :) 

So this got me thinking...His love endures forever, but for whom? I guess this is really a whole different thing completely than the question I posted. Sorry. The only conclusion I could draw from reading this Psalm was that God loves His people so much that He is willing to destroy other peoples (vs 17-22). I also noticed that, it seems anyway, that every time God saves His people, another people is destroyed. What does this tell us about God's love?