Calvinists takes pride in being one of the favored of God and they come across to me as being glad that most people cannot be saved. I would like to be wrong about this but I have read what these Calvinists have written for a few years now and I do not think I am. Misrepresenting who the sheep are in John 10 and 1 and 2 Peter is never going to help but just energize them into more error. It is best to believe what words say.
Peter did not think the sheep were gentiles and if he did, as you seem to think, he was as confused as a termite in a yo-yo, because he said the following.
1 Peter 1;1 Peter, an apostle of Jesus Christ,
to the strangers scattered throughout Pontus, Galatia, Cappadocia, Asia, and Bithynia,
2 Elect according to the foreknowledge of God the Father, through sanctification of the Spirit, unto obedience and sprinkling of the blood of Jesus Christ: Grace unto you, and peace, be multiplied.
Gentiles in their own lands are not strangers. Israelites scattered into gentile lands are strangers. These strangers have been there since 722 BC.
Now, notice what he says here to these strangers in gentile lands here:
Having your conversation honest among the
Gentiles: that, whereas they speak against you as evildoers, they may by your good works, which they shall behold, glorify God in the day of visitation.
Of course conversation means life style.
Here is another instruction:
1 Peter 4:3
For the time past of our life may suffice us to have wrought the will of the
Gentiles, when we walked in lasciviousness, lusts, excess of wine, revellings, banquetings, and abominable idolatries:
....and what about this?
But ye are a chosen generation, a royal priesthood, an holy
nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light;
Now, the church is not revealed to us as a nation. Peter is not addressing these strangers as the church but as a people. This is the northern nation that was scattered out of their land and those whom Jesus Christ said he was going to seek and save at his first coming. Peter and the other 11 apostles was charged with this task in the name of Jesus Christ.
Ga 2:7 But contrariwise, when they saw that the gospel of the uncircumcision was committed unto me, as the gospel of the circumcision was unto Peter;
8 (For he that wrought effectually in Peter to the apostleship of the circumcision, the same was mighty in me toward the Gentiles)
9 And when James, Cephas, and John, who seemed to be pillars, perceived the grace that was given unto me, they gave to me and Barnabas the right hands of fellowship; that we should go unto the heathen, and they unto the circumcision.
10 Only they would that we should remember the poor; the same which I also was forward to do.
After reading this I am not surprised that Peter and the other apostles wrote their letters to people of Israel. Are you? These letters were written in the 60's and they are still sheep because they are still of the family of Israel. However, they were children of God if they are born again.
1 Pet 2:25 For ye were as
sheep going astray; but are now returned unto the Shepherd and Bishop of your souls.
Read about what God is doing for the northern kingdom of Israel in Rom 9 and Hosea 1. He had promised to visit them and call them the children of the living God, which, BTW, requires a birth.
We are back to the flock being those of Israel and not gentiles:
1 Peter 5:2
Feed the
flock of God which is among you, taking the oversight thereof, not by constraint, but willingly; not for filthy lucre, but of a ready mind;
1 Peter 5:3
Neither as being lords over God's heritage, but being examples to the
flock.
Still speaking to the strangers in the north.
The scriptures are logical and reasonable and life giving if one just simply believes the words and leaves off the editorializing.