Did You Give God Your Best

This morning as we were worshipping I could sense God asking me, "Are you giving me your best?". I listened to even closer to the words we were singing in the songs Mighty to Save and God of This City. It made me realize all that God was doing even when I don't realize it and how much I have been forgiven of throughout my life, including today. It made me want to sing with everything that I could muster so that the whole world would know. So I began to wonder why don't we give God everythign we have everytime we worship. Any thoughts?