There are a lot of things that I do not understand in the Bible. Heck, there are a lot of things that I don't understand, period. But especially in the Bible. Mainly in the Old Testament, but even Jesus and Paul say some things that make me sit back and think, "Ok, I'm totally lost now." And don't even get me started on Revelation.
To tell the truth, it has always kinda scared me when I stumble across things that I don't understand. Especially in the Bible. It's kinda like, "What if I'm missing something huge here?" But then I started reading C.S. Lewis's Mere Christianity (an excellent book that I would recommend to anyone struggling with any aspect of faith). In one of his chapters on faith, Lewis states, "Whenever you find any statement in Christian writings which you can make nothing of, do not worry. Leave it alone. There will come a day, perhaps years later, when you suddenly see what it meant. If one could understand it now, it would only do one harm."
What I believe that Lewis is getting at here is that when you run across a passage in the Bible (or most other books, for that matter) that don't quite click with you, don't panic. Don't tear your clothes and say, "Woe am I, for I am ignorant." Instead, drop it for the time being. Keep on going with your readings. Hopefully, you will come across something else that makes sense of what you read earlier.