1.Christians can live perfect:
Without Christ by our own human efforts we can not be perfect. The Christian whose faith is in the blood of Jesus Christ knows that faith makes us right with God.
Christians are perfect only through the one sacrifice that Jesus made. God is perfect without sin; God expects them also to be perfect without sin. Jesus' sinless life gives us a perfect example to follow.
Scripture on perfection:
"Because by one sacrifice he has MADE PERFECT FOREVER those who are being made holy." Hebrews 10:14
Matt 5:48 Be ye therefore perfect, even as your Father which is in heaven is perfect."
Noah was perfect because Noah had not disobeyed a single commandment given to him by God. "Gen 6:9 - Noah was a just man and perfect in his generations, and Noah walked with God. 22 Thus did Noah; according to all that God commanded him, so did he."
God himself challenged the devil saying that Job lived a perfect life. "Job 1:8 And the LORD said unto Satan, Hast thou considered my servant Job, that there is none like him in the earth, a perfect and an upright man, one that feareth God, and escheweth evil?" The Word of God says that Job has not committed sin. "Job1:22 In all this Job sinned not,”
God told Abraham to live a perfect life before him. "Gen 17:1 And when Abram was ninety years old and nine, the LORD appeared to Abram, and said unto him, I am the Almighty God; walk before me, and be thou perfect". Abraham fulfilled what God has required of him and received the testimony even from Jesus Christ. "John 8:39 They answered and said unto him, Abraham is our father. Jesus saith unto them, If ye were Abraham's children, ye would do the works of Abraham."
When King Hezekiah was sick he asked God to remember his perfect life and God favored him immediately. "2 King 20:3 I beseech thee, O LORD, remember now how I have walked before thee in truth and with a perfect heart, and have done that which is good in thy sight."
Phil 3:15 Let us therefore, as many as be perfect, be thus minded: and if in any thing ye be otherwise minded, God shall reveal even this unto you."
1 Cor 2:6 Howbeit we speak wisdom among them that are perfect: yet not the wisdom of this world, nor of the princes of this world,---."
Eph 4:11 And he gave some, apostles; and some, prophets; and some, evangelists; and some, pastors and teachers; 12 For the perfecting of the saints, for the work of the ministry, for the edifying of the body of Christ: 13 Till we all come in the unity of the faith, and of the knowledge of the Son of God, unto a perfect man, unto the measure of the stature of the fulness of Christ:."
Col 1:28 Whom we preach, warning every man, and teaching every man in all wisdom; that we may present every man perfect in Christ Jesus: 29 Whereunto I also labour, striving according to his working, which worketh in me mightily."
1 Pet 5:10 But the God of all grace, who hath called us unto his eternal glory by Christ Jesus, after that ye have suffered a while, make you perfect, stablish, strengthen, settle you."
Aim for perfection, listen to my appeal, be of one mind, live in peace. And the God of love and peace will be with you. 2 Corinthians 13:11
Christians can live without sin:
We can live our life free from sin through Christ who strengthens us because we have been set free from sin by the Spirit of God and we are no longer slaves to sin.
No one who is born of God will continue to sin, because God's seed remains in him; he cannot go on sinning, because he has been born of God. 1 John 3:9
We know that anyone born of God does not continue to sin; the one who was born of God keeps him safe, and the evil one cannot harm him. 1 John 5:18
To him who is able to keep you from falling and to present you before his glorious presence without fault and with great joy to the only God our Savior be glory, majesty, power and authority, through Jesus Christ our Lord, before all ages, now and forevermore! Amen. Jude 24, 25
Being then made free from sin, ye became the servants of righteousness… But now being made free from sin, and become servants to God, ye have your fruit unto holiness, and the end everlasting life. — Rom 6:18, 22