Faith is trust in God when you are not in the light. When you don't understand things. But in the things you don't understand. In the darkness. It's holding onto the facts that you do understand when confronted with darkness.
When confronted with situations we don't understand, we need to hang on to what we do understand: God is good, God is faithful, and God will always deliver His people. – Chuck Smith
Faith is not throwing away your knowledge of God.