Matthew 5:48 - Be perfect, therefore, as your heavenly Father is perfect. This is what God needs us to be, but there is no way we can. From the moment we are conceived we are sinful
James 2:10 -For whoever keeps the whole law and yet stumbles at just one point is guilty of breaking all of it. If we commit even just one sin, we are at the point of no return. We are not able to come back from it.
1 John 1:8 - If we claim to be without sin, we deceive ourselves and the truth is not in us. We can only sin everyone once in awhile and never do drugs or get drunk, but we are still just as damned as the person who murders.
We cannot do anything to get ourselves into heaven saved. We will never do enough good in our lives to balance out the bad. The only thing we need is our faith in Jesus Christ as our Savior. He did it all, we need not do anything but believe.
Romans 3:28 - For we maintain that a person is justified by faith apart from the works of the law.
God requires all of these things out of us, but he knows that none of us are perfect, ever. That is why he sent his one and only son, Jesus, to save us all. We can have hope to live forever with God in heaven because of this. Have faith.