Rm3

God is righteous and declares righteous those who have faith in Jesus. There is no other way to become "right with God". No work or amount of works can ever justify anyone or cover their sin. Only Jesus. 

God has provided a way to have righteousness. That way is through faith in Jesus alone. The purpose of the law was to reveal our need for Jesus. For those who have faith in Jesus, works are not our way of gaining favor with God, but rather the evidence of our relationship and love for Him.

Be grateful that we don't have to "earn" favor with God! It would have been impossible! Through Christ we experience the favor of God. Have faith in Jesus.