I have read the Bible for some 50+ years now and have found no scriptures instructing the average lay Christian to either preach to sinners or to attempt to save any sinner's soul. If you have discovered such scripture, please post it. Thank you in advance.
"The Torah says:
Should even your brother the son of your mother, your son, your daughter, or your beloved wife, or your dearest friend, try to seduce you secretly, trying to convince you to go and worship the gods of others, that your ancestors did not know, gods of the nations around you, whether near or far, from one end of the earth to the other;
Do not like this person, and do not listen to him, do not have mercy upon him to save him, do not give him the benefit of the doubt, and do not cover up for him.
You must utterly kill him, your hand should be the first to kill him, and the hand of all the nation should follow you. You must pelt him with stones until he dies, because he tried to push you away from Hashem your G-d, Who took you out of Egypt, from the house of slavery.
And all of Israel will hear and fear, and they will not continue to do this terrible thing amongst you.
-- Deuteronomy 13:7-12
So you see? Even if you were my dearest friend, or one of my most loved relatives, and you tried to convince me to follow any belief other than that which my ancestors knew, I cannot follow you, and I am not permitted to treat you with love.
To Jews, missionaries are the worst poison. Hitler tried to kill only our bodies. Physical death is temporary, because there is an afterlife and we will stand up when the resurrection of all the dead takes place.
But missionaries destroy Jewish souls, sending them to a death that is permanent. Thus, the Torah tells us that even though we are required to love our fellow man, we are forbidden to love a missionary."
What Judaism thinks of missionaries
Good stuff. Makes ya wonder if Jesus was a Jew, teaching Judaism (what would become Christianity didn't exist in his lifetime, and the gospels wouldn't get written let alone compiled into the NT for at least a century afterwords) where people who believe they're following Jesus get all this proselytisizing stuff from.