You must:

Repent of your sins:
• Sin is any act that breaks God's Holy Laws.  For example: loving anything more than God; dishonoring parents, killing, adultery, stealing, lying; envy, drunkenness, fornication (sex outside of marriage), and so on (Exodus 20:3-17; Galatians 5:19-21 KJV).  Gospel repentance is acknowleding you've sinned against a righteous God and having an honest desire to get right with him (Psalm 38:18; Mark 1:15; 2 Corinthians 7:10 KJV).

You must:

• Believe in who Jesus Christ is:
  • Jesus Christ is the Son of God.  Jesus Christ is one with the Father.  Jesus Christ is the only one that can save you from going to Hell and the Lake of Fire forever (Mark 1:1, 1 John 5:7, John 14:6 KJV).

You must:

Believe in what Jesus Christ did:
• Jesus Christ came in the world as a man and was born of a virgin.  He lived a sinless life.  He willingly shed His Blood, hung on a cross,  and died for the sins of men (Matthew 1:23; 1 Peter: 1:19, John 10:18 KJV).  Then, he was raised from the dead and ascended back to heaven (John 3:13 KJV).

To those who think they're good enough without the Gospel, the Lord says:

"As it is written, There is none righteous, no, not one:" (Romans 3:10 KJV)

"But we are all as an unclean thing, and all our righteousnesses are as filthy rags; and we all do fade as a leaf; and our iniquities, like the wind, have taken us away." (Isaiah 64:6 KJV)

To the wealthy, the Lord says:

"Go to now, ye rich men, weep and howl for your miseries that shall come upon you. Your riches are corrupted, and your garments are motheaten.  Your gold and silver is cankered; and the rust of them shall be a witness against you, and shall eat your flesh as it were fire.  Ye have heaped treasure together for the last days." (James 5:1-3 KJV)

"For what shall it profit a man, if he shall gain the whole world, and lose his own soul? Or what shall a man give in exchange for his soul? Whosoever therefore shall be ashamed of me and of my words in this adulterous and sinful generation; of him also shall the Son of man be ashamed, when he cometh in the glory of his Father with the holy angels." (Mark 8:36-38 KJV)

To the criminals, the Lord says:

"Envyings, murders, drunkenness, revellings, and such like: of the which I tell you before, as I have also told you in time past, that they which do such things shall not inherit the kingdom of God." (Galatians 5:21 KJV)

"Blessed are they that do his commandments, that they may have right to the tree of life, and may enter in through the gates into the city.  For without are dogs, and sorcerers, and whoremongers, and murderers, and idolaters, and whosoever loveth and maketh a lie.  I Jesus have sent mine angel to testify unto you these things in the churches.  I am the root and the offspring of David, and the bright and morning star." (Revelation 22:14-16 KJV)

To the broken-hearted, the Lord says:

"Come unto me, all ye that labour and are heavy laden, and I will give you rest.  Take my yoke upon you, and learn of me; for I am meek and lowly in heart: and ye shall find rest unto your souls.  For my yoke is easy, and my burden is light." (Matthew 11:28-30 KJV)

"The Spirit of the Lord is upon me, because he hath anointed me to preach the gospel to the poor; he hath sent me to heal the brokenhearted, to preach deliverance to the captives, and recovering of sight to the blind, to set at liberty them that are bruised," (Luke 4:18 KJV)