Jesus, the only begotten Son of God says: “Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven” (Matthew 7:21).
“Enter ye in at the strait gate: for wide is the gate, and broad is the way, that leadeth to destruction, and many there be which go in thereat; because strait is the gate, and narrow is the way, which leadeth unto life, and few there be that find it” (Matthew 7:13–14).
“For many are called, but few are chosen” (Matthew 22:14).
“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. My Father, which gave them me, is greater than all; and no man is able to pluck them out of my Father’s hand. I and my Father are one” (John 10:27-30).
“Fear not, little flock; for it is your Father’s good pleasure to give you the kingdom” (Luke 12:32).
“I am with you alway, even unto the end of the world. Amen” (Matthew 28:20).