It's not perfect tense... because teleioi is an adjective, not a verb in the perfect tense.
And yes, teleios can carry the idea of completeness, but that does not mean “mature but still sinful.” The context determines what kind of completeness Jesus is talking about.
Jesus says, “You shall be perfect, just as your Father in heaven is perfect.” God’s perfection is not simply that He is spiritually mature. He is morally complete and without sin.
The surrounding verses are also about moral conduct: loving enemies instead of only loving those who love you, doing good beyond the standard of ordinary sinners, and reflecting the character of the Father.
So I don’t think the verse can honestly be reduced to, “Just grow as much as you can spiritually.” Jesus gives God Himself as the standard.
If “perfect” merely meant “reach your personal best while remaining imperfect,” then Jesus could have said that. Instead He said, “as your Father in heaven is perfect.” Unless you think God needs to get more spiritually mature, which doesn't make sense.
Its true, the standard is true sinless perfection referring to Jesus.. but what is the context around believers in this passage of being perfect?
It's not perfect tense... because teleioi is an adjective, not a verb in the perfect tense.
And yes, teleios can carry the idea of completeness, but that does not mean “mature but still sinful.” The context determines what kind of completeness Jesus is talking about.
Jesus says, “You shall be perfect, just as your Father in heaven is perfect.” God’s perfection is not simply that He is spiritually mature. He is morally complete and without sin.
The surrounding verses are also about moral conduct: loving enemies instead of only loving those who love you, doing good beyond the standard of ordinary sinners, and reflecting the character of the Father.
So I don’t think the verse can honestly be reduced to, “Just grow as much as you can spiritually.” Jesus gives God Himself as the standard.
If “perfect” merely meant “reach your personal best while remaining imperfect,” then Jesus could have said that. Instead He said, “as your Father in heaven is perfect.” Unless you think God needs to get more spiritually mature, which doesn't make sense.
Matthew 5:45-48 KJV
That ye may be the children of your Father which is in heaven: for he maketh his sun to rise on the evil and on the good, and sendeth rain on the just and on the unjust. [46] For if ye love them which love you, what reward have ye? do not even the publicans the same? [47] And if ye salute your brethren only, what do ye more than others? do not even the publicans so? [48] Be ye therefore perfect, even as your Father which is in heaven is perfect.
This is about loving fully unconditionally , not just to immediate brethren.. not about sinlessness.
It is true the perfect tense is a verb. So that tense doesn't quite fit, but as you say telios refers to maturity and completeness.
The perfection in reference to the Father here is in his perfect moral justice. So believers are being admonished to be completely, wholly just in deals with others.
True sinlessness is actually being God. No one can do that. The only time that happens is in heaven.