In his book The Attributes of God: A Journey into the Father’s Heart, A. W. Tozer writes,
A great old theologian once said, “Don’t reject a fact because you don’t know a method.” Don’t say it isn’t so because you don’t know how it’s so. There is much you can’t explain. If you come to me and ask the how of things, I’ll ask you twenty-five questions, one after the other, about yourself—your body, your mind, your hair, your skin, your eyes, your ears. You won’t be able to answer one question. Yet you use all those things even though you don’t understand them. I don’t know how God can suffer. That is a mystery I may never know.
A lot of hymn writers who should have been cutting the grass at the time have written songs instead. One of them says this: “I wonder why, I wonder why He loved me so. I will love and pray that I might know why He loved me so.” You will never know that. There is only one answer to why God loved you: because God is love. And there is only one answer to why God has mercy on you: because God is mercy, and mercy is an attribute of the Deity. Don’t ask God why, but thank Him for the vast wondrous how and fact of it.
As little children, we should receive all that God tells us, whether we can explain it or not. Not being able to understand how something that God says can be so is no reason to doubt, question, or reject what He says. Failure to obey God because we cannot explain why He wants us to do something will keep us from the fullness of His blessings in our lives.