"Finally, brethren, farewell. Be perfect, be of good comfort, be of one mind, live in peace; and the God of love and peace shall be with you." -2 Corinthians 13:11
Not only is it possible to be perfect in this life, but it is our calling, in works and in faith.
Luk 6:40 The disciple is not above his master: but every one that is perfect shall be as his master.
Mat 5:48 Be ye therefore perfect, even as your Father which is in heaven is perfect.
1Pe 1:13 Wherefore gird up the loins of your mind, be sober, and hope to the end for the grace that is to be brought unto you at the revelation of Jesus Christ;
1Pe 1:14 As obedient children, not fashioning yourselves according to the former lusts in your ignorance:
1Pe 1:15 But as he which hath called you is holy, so be ye holy in all manner of conversation;
1Pe 1:16 Because it is written, Be ye holy; for I am holy.
2Ti 3:16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
2Ti 3:17 That the man of God may be perfect, throughly furnished unto all good works.
Eph 4:11 And he gave some, apostles; and some, prophets; and some, evangelists; and some, pastors and teachers;
Eph 4:12 For the perfecting of the saints, for the work of the ministry, for the edifying of the body of Christ:
Eph 4:13 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.
It is obvious if the Bible is telling us we can be like Christ,be perfect as the Father,and be holy,as God is holy,it is possible,and hate sin,and do not want sin,by the Spirit it is possible,for a person led of the Spirit shows the ways of the Spirit,and not the flesh.
There is no excuse,and God will require it of us to be perfect as He is perfect,and however Christ behaved while on earth,do the same.
People do like to make excuses,but they also want to live how they lived before confessing Christ,for they like those ways,but Jesus said any person that puts their hands to the plough,looking back,is not fit for the kingdom of God.Remember Lot's wife.
But many when they confessed Christ did not even start their walk with Christ,because of the denomination they attended belief system,where they confessed Christ,were sorry for their sins,wanted all their past sins forgiven,but did not change like they were supposed to change,but sinned,repented,sinned,repented,but never got rid of the sin,or sins,according to what they like.
They sinned,and repented,but knew they would do the sin in the future after a short stint,thus hanging unto the sin,and thinking they were alright with God.
And there are preachers that preach this way causing them to hold unto sin,and think they are alright with God,and they are not like their master,not perfect as the Father,and not holy,as God is holy.
Jas 3:1 My brethren, be not many masters, knowing that we shall receive the greater condemnation.
Jas 3:2 For in many things we offend all. If any man offend not in word, the same is a perfect man, and able also to bridle the whole body.
Jas 3:3 Behold, we put bits in the horses' mouths, that they may obey us; and we turn about their whole body.
Jas 3:4 Behold also the ships, which though they be so great, and are driven of fierce winds, yet are they turned about with a very small helm, whithersoever the governor listeth.
Jas 3:5 Even so the tongue is a little member, and boasteth great things. Behold, how great a matter a little fire kindleth!
Jas 3:6 And the tongue is a fire, a world of iniquity: so is the tongue among our members, that it defileth the whole body, and setteth on fire the course of nature; and it is set on fire of hell.
Jas 3:7 For every kind of beasts, and of birds, and of serpents, and of things in the sea, is tamed, and hath been tamed of mankind:
Jas 3:8 But the tongue can no man tame; it is an unruly evil, full of deadly poison.
Be perfect as the Father is perfect,and we have to become unto a perfect man.
The tongue is the most unruliest member of our body,for it will sin more than any other body part,for we might not want people to get hurt physically,but we might not mind slandering them,cutting them down,talking down to them,gossiping about them,and filthy communication out of our mouth,and lying.
If a person can bridle their tongue,the most unruliest member,and cause it to cease sinning,then they can bridle the whole body,and cause it to cease sinning.
But no person can tame the tongue to become unto a perfect man.Only God can tame the most unruliest member of our body,causing the whole body to cease from sinning.