For it is not those who hear the law who are righteous in God’s sight, but it is those who obey the law who will be declared righteous. (Ro 2:13; NIV)
Every week some people show up at churches to hear the word of God but never take it to heart and put it into action. These same people profess to be Christian and even talk about how good the sermon was, then they go home, grab a six-pack of beer, and spend the rest of the day complaining about everything and everyone under the sun. There does not seem to be anything connecting what they heard in church to that part of the brain (or heart) which causes action.
There are a lot of one-hour Christians out there; those who attend church services every week and appear to be the greatest Christians. What about the other 167 hours a week? There is no such thing as "part-time Christianity," even though that is how many people treat it.
Paul tells us that it is not the one who "hears" the law who is righteous, but the one who "obeys" it. There's a big difference between the two. Do you think a police officer would fail to stop someone driving 95 mph through town just because the driver "knew" what the posted speed limit was? God is the same way. He cares that we know is law, but we need to obey it to find his mercy. Start with what Jesus called the greatest law, love. Love one another, show compassion and respect for each other and lift each other up in prayer.
Why not start right now. We all know of someone who needs prayer; to find God for healing, for comfort, or maybe you would like to thank God for someone in your life. I encourage you to pray for that person now, and every time God lays a name on your heart to do it right then no matter the time of day or night. It is time we become "full-time Christians" every hour of every day.