Jesus tells us how to be Perfect.

Mat 5:48
Be ye therefore perfect, even as your Father which is in heaven is perfect.

Mat 19:21
Jesus said unto him, If thou wilt be perfect, go and sell that thou hast, and give to the poor, and thou shalt have treasure in heaven: and come and follow me.

Heb 13:21
Make you perfect in every good work to do his will, working in you that which is well pleasing in his sight, through Jesus Christ; to whom be glory for ever and ever. Amen.

Phl 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.

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:

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:

2Ti 3:17
That the man of God may be perfect, throughly furnished unto all good works.

Jas 1:4
But let patience have her perfect work, that ye may be perfect and entire, wanting nothing.

1Pe 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.