We do the same thing with God. We strive for perfection in our service and our worship. Once, I served in a choir where excellence was the theme. We strived to produce excellence in everything! Every musical number and every drama presentation had to be performed perfectly. Excellence in every way because Jesus deserves nothing less. However, this limited many people who want to praise God through singing but can not because someone does not think they are talented enough to participate in the music ministry.
I do not see anywhere in Scripture that God has to have excellence to be pleased. If he did, He wouldn't want me because I am not perfect or excellent in every way. Thankfully, it is the heart that He cares about. It is the heart that He judges. It is our hearts that He wants. Whatever we do, we need to make sure we are empowered by the Holy Spirit to bring honor to Jesus through a humble and responsive heart. I have seen this difference in many ways but the one which spoke the loudest to me was with worship ministers. I have seen some great leaders with amazing voices. They can put a 'perfect' worship service together with an excellent performance from a choir or worship team. However, the most amazing worship minister I have ever sat under was a man that led you right to the feet of Jesus. As you worshiped you knew you were in the presence of Jesus and that is all that mattered. He was musically skilled, but it was his amazing spirit of worship that moved you. It flowed out of him straight to your heart. Every song, every word, every performance was to praise God, love Jesus, and let the Holy Spirit minister. He was humble and never exalted himself. I actually have never heard him sing. The spot light never came off of God!
Don’t get caught up with having to be perfect to please the Lord. A humbled and surrendered heart is what He wants. Serve Him with your heart. The Apostle Paul tells us to do everything as to the Lord and not for the pleasure and approval of man. Do you put yourself down, not thinking you are perfect enough for God? Do you not sing because you don't think you are 'talented' enough? Do you not talk to people about God because you don't think you are eloquent in speech? Do you truly love God? Have you surrendered your heart to Jesus? Have you let the Spirit humble you? That is what it takes to please God and that is true excellence!
But I, God, search the heart and examine the mind. I get to the heart of the human. I get to the root of things. I treat them as they really are not as they pretend to be.