to be perfect he’s not saying sinless you sort of pulled a single verse out of the subject he’s saying to be perfect in mercy towards others .
“But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;
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.
....Be ye therefore perfect, even as your Father which is in heaven is perfect.”
Matthew 5:44-45, 48 KJV
the contemporary view helps even more
“But love ye your enemies, and do good, and lend, hoping for nothing again; and your reward shall be great, and ye shall be the children of the Highest:
for he is kind unto the unthankful and to the evil. Be ye therefore merciful, as your Father also is merciful.”
Luke 6:35-36 KJV
People focusing on sin are missing what Jesus has said . The truth is there was no
One , is no one who is righteous apart from Christ . All have sin so Jesus is saying because you’ve all fallen short , be merciful to others .
It’s in his instruction to pray
“And forgive us our sins; for we also forgive every one that is indebted to us. And lead us not into temptation; but deliver us from evil.”
Luke 11:4 KJV
“And when ye stand praying, forgive, if ye have ought against any: that your Father also which is in heaven may forgive you your trespasses.”
Mark 11:25 KJV
your right the law of Moses Is fulfilled Jesus death For all men is the culmination of the law. We now have everything jesus taught to believe and follow after such as being perfect or complete in mercy towards others because again the gospel comes to save sinners who is all of us .
Having no grudges , no hate , not taking revenge repaying insult for insult , no
More eye for an eye , but rather turn the other cheek ....mercy rules the day