No we can't. With man this impossible but with God all things are possible.
Therefore if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new. And all things are of God, who hath reconciled us to himself by Jesus Christ, and hath given to us the ministry of reconciliation. Who his own self bare our sins in his own body on the tree, that we, being dead to sins, should live unto righteousness: by whose stripes ye were healed. HAVE FAITH.
For if the blood of bulls and of goats, and the ashes of an heifer sprinkling the unclean, sanctifieth to the purifying of the flesh:How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience (our inner person, who we were before Christ) from dead works (sin, acts that cause death) to serve the living God?
For the law having a shadow of good things to come, and not the very image of the things, can never with those sacrifices which they offered year by year continually make the comers thereunto perfect.For then would they not have ceased to be offered? because that the worshippers once purged should have had no more conscience of sins.
But in those sacrifices there is a remembrance again made of sins every year. For it is not possible that the blood of bulls and of goats should take away sins. And ye know that he was manifested to take away our sins; and in him is no sin.
By His will we are sanctified (made holy) through the offering of the body of Jesus Christ once for all. For by one offering he hath perfected for ever them that are sanctified. Whereof (in regards to this perfectness) the Holy Ghost also is a witness to us: for after that he had said before, This is the covenant that I will make with them after those days, saith the Lord, I will put my laws into their hearts, and in their minds will I write them; For the righteousness which is of faith speaketh on this wise, Say not in thine heart, Who shall ascend into heaven? (that is, to bring Christ down from above Or, Who shall descend into the deep? (that is, to bring up Christ again from the dead.) But what saith it? The word (God's laws) is nigh thee, even in thy mouth, and in thy heart: that is, the word of faith, which we preach.
Matt 19:26; 2Cor 5:17,18; Heb 9:13,14; Heb 10:1-4; 1John 3:5; 1Pet 2:24; Heb 10:10 Heb 10:14-16; Rom 10:6-8
Merry Christmas!