The message from the beginning is about our Eternal life

1 John 5:11-13  And this is the record, that God hath given to us eternal life, and this life is in his Son.

12 He that hath the Son hath life; and he that hath not the Son of God hath not life.

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.

John 12:49-50 For I have not spoken of myself; but the Father which sent me, he gave me a commandment, what I should say, and what I should speak.

50 And I know that his commandment is life everlasting: whatsoever I speak therefore, even as the Father said unto me, so I speak.

John 14:6  Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.
John 6:37  All that the Father giveth me shall come to me; and him that cometh to me I will in no wise cast out.
John 10:10  The thief cometh not, but for to steal, and to kill, and to destroy: I am come that they might have life, and that they might have it more abundantly.