Statement One: Ezekiel 3:20 says, "Again, When a righteous man doth turn from his righteousness, and commit iniquity, and I lay a stumbling-block before him, he shall die: because thou hast not given him warning, he shall die in his sin, and his righteousness which he hath done shall not be remembered." This verse is commonly interpreted to mean that an eternally saved man to lose his salvation through sinning.
Statement Two: The Lord Jesus Christ taught, "My sheep hear my voice, and I know them, and they follow me: And I give unto them eternal life; and they shall never perish, neither shall any
man pluck them out of my hand." (John 10:27-28) Here the Lord is teaching that he gives a gift to a people he refers to as his "sheep" and that this gift is something called "eternal life" which involves a promise that they "shall never perish." This statement is often used to support the notion that it is impossible for someone who once possessed eternal salvation to ever fall from grace.