Hi brother utilyan nice to see you again but
NOPE!
The GREEK word Κυριακή is
not a reference to the
1st day of the week. Happy to discuss the GREEK meaning in detail if you like? This is why Κυριακή is
not a reference to the
1st day of the week....
The term "
LORDS DAY" used in
Revelation 1:10 is not linked to
μία των which is used in the NEW TESTAMENT Greek which means
FIRST DAY.
In Revelations 1:10 "Lords Day
κυριακῇ ἡμέρᾳ does not link to
any scripture reference in the NEW TESTAMENT to
μιά των σαββάτων (the FIRST DAY OF THE WEEK).
κυριακῇ ἡμέρᾳ used in Revelations 1:10 is in reference to the Lord's ownership of the day. It does not say that this day is in reference to
μιά των σαββάτων which means the FIRST DAY OF THE WEEK.
Your challenge here in this OP is to prove that the Lord's DAY is in reference to the First day of the week and prove it from the scriptures.
Physical circumcision is not a requirement in the NEW COVANENT of faith. It is a SHADOW law from the MOSAIC BOOK of the OLD COVENANT *EXODUS 24:7 that points to a "NEW HEART" by faith.
ROMANS 2:28-29 [28], For he is not a Jew, which is one
outwardly;
neither is that circumcision, which is outward in the flesh: [29], But
he is a Jew, which is one inwardly; and circumcision is that of the heart, in the spirit, and not in the letter; whose praise is not of men, but of God.
Hope this is helpful.