"And the LORD came and called as before, 'Samuel! Samuel!' And Samuel replied, 'Yes, Your servant is listening'" (1 Samuel 3:10).
As a father, I have to better understand what has been a reality for many years and centuries. We don't always listen very well! Listening is a process. Listening is more than just hearing, but being able to hear the right things, and to follow up on what we've heard.
Samuel had to get to the point where he learned to distinguish the voice of God from every other voice that he knew. When he recognized who was calling him, he then recognized that he was a servant. it's very easy to move along in our common routines. But, it is essential that we take the time to distinguish His voice and to listen - truly listen, even when what He says is hard to hear.
We need to be purposeful in hearing the voice of God. He speaks a lot more than we hear. Rather than just "talking" during our times in prayer, we need to incorporate more listening. We also need to be willing to hear the tough things and willing, as a servant, to speak the tough things.
Wherever you are in your day, even right now, take some time to listen. Allow the voice of the Holy Spirit to speak to you. Let Him lead you, correct you, love you, challenge you, and encourage you. In the noise of your day, allow His voice, even as a whisper, to be the loudest and most peaceful voice you hear.