We must come to listen to God. To hear from God. To hear from God. The alternative is to come with the sacrifice of fools . That is to come before God with the foolish idea that He will hear you without you listening to Him in faith.
Sacrifices are no substitute for obedience.
God sees your heart. President F. D. Roosevelt got tired of smiling that big smile and saying the usual things at all those White House receptions. So, one evening he decided to find out whether anybody was paying attention to what he was saying. Nobody listened to what he was saying, except one foreign diplomat. God doesn't speak in an audible voice.