1 John 5:11
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.
Not every one that saith to me, Lord, Lord, shall enter into the kingdom of heaven: but he that doth the will of my Father who is in heaven, he shall enter into the kingdom of heaven. (Matthew 7:21)
would be meaningless.