The Cop-out "i'm Only Human"

I just heard a song on one of the threads here saying "I'm only human, don't put the blame on me." We have heard the first part of this phrase a lot, as well as "We are all human, we all make mistakes." Yes that is true, but let's not use that as a cop-out or as an excuse, setting us up or preparing us to fail in doing that which is good. "I'm only human" can be read as being a sinner, one that is not perfect, one that fails, one that doesn't know everything, and a lot of other negative aspects. Is this the only way God views us? Was this Paul's motto, or did Paul say "I can do all things through Christ, which strengthens me." Philippians 4:13. Did God tell Joshua "You're only human. Don't think you are going to be able to fill the shoes of Moses. Don't think the people are going to follow your leadership. Don't think you will be able to cross this flooding, Jordan River, or lead the Israelites into the Promised Land." God didn't provide Joshua or anybody else with this cop-out when God would have one (that He had created in His own image, and had promised to be with, or would indwell), live for Him. "This book of the law shall not depart out of thy mouth; but thou shalt meditate therein day and night, that thou mayest observe to do according to all that is written therein: for then thou shalt make thy way prosperous, and then thou shalt have good success. Have not I commanded thee? Be strong and of a good courage; be not afraid, neither be thou dismayed: for the LORD thy God is with thee whithersoever thou goest." One can go around with the defeatest attitude of "I'm only human" or with the victorious attitude of "I am a human, made in God's image, empowered with yielding to be controlled by the indwelling presence of God's Spirit, protected by putting on the whole armor of God, and living by faith by putting my trust and obedience in the Word of God.