Why did our baby die, she was only sick one day?

Did you not take her to a doctor? The attending physician should be able to answer that question.

All humans have an illness. This illness is talked about in the Bible and bluntly describes at Romans 5:12 "...through one man sin entered into the world and death through sin, and so death spread to all men because they had all sinned."

That "one man" was none other than our first parent, Adam. If you turn in your Bible to Genesis chapter 3 and read it you will find the account and who it was who was responsible for the sin of Adam; Satan the devil was the prime cause.

But is that the end of the story? No. One of the primary things Jesus will yet do is found in the Bible book of First John chapter three. Look closely at verse 8. "......For this purpose the Son of God was made manifest, to break up the works of the Devil."

One of the works of the devil is causing death. Jesus will undo what Satan has done. Your baby can be one of those God will remember in the resurrection promised at Acts 24:15.

Then live for the day when all of the Devil's works will be no more. No more crime. No more wars, no more hunger. And no more death do to the sin of Adam.

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thats sad, you need to ask god that question, hes the only one that has answers on that