I John is written to Israel???
1 John was written to Israel and here are some reasons I say it
1 John 1:9 If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.
This was directed to the nation of Israel, who had to confess their sins in accordance with the law and the prophets expressed in Leviticus 26:40-42, 1 Kings 8:47, 2 Chronicles 6:37-39 Nehemiah 1:6, Nehemiah 9:2, and Mark 1:5.
1 John 5:3 For this is the love of God, that we keep his commandments: and his commandments are not grievous.
In order to love God, Israel had to keep his commandments (Exodus 20:6 Deuteronomy 7:9 Deuteronomy 10:12-13 John 14:15).
1 John 3:23 And this is his commandment, That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment.
For eternal life, Israel had to believe on the name of Jesus Christ (John 3:16-18 John 6:29).
1 John 5:13 These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God.
Jesus from the beginning said in John 8:24-25, that Israel had to believe on his name (John 1:12 Acts 4:12).