Some may ask, how can we enter into Heaven? If you have not received Christ into your heart, then the answer is that you will not enter Heaven. Your sins are unrighteous and full of corruption; therefore you cannot inherit the kingdom of God (1 Corinthians 15:50). We are justified by faith in Jesus Christ and not by works. Therefore a man must come to Christ to receive forgiveness and enter into Heaven. There is nothing a man can do alone, without Jesus, to be considered righteous before God. Our righteousness is as filthy rags in the eyes of God (Isaiah 64:6).
When we accept Christ, we are considered clean and righteous because Jesus cleanses us from sin by his own blood. Revelation 1:5 says, “And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. Unto him that loved us, and washed us from our sins in his own blood.” 1 John 1:7 says, “But if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.”
Why is the Blood necessary? Go to this post to read. Saved by the Blood of Jesus
Titus 3:5 -Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost;
Ephesians 2:13 -But now in Christ Jesus ye who sometimes were far off are made nigh by the blood of Christ.
Galatians 2:16 -Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.
Romans 4:5-7- But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is counted for righteousness. Even as David also describeth the blessedness of the man, unto whom God imputeth righteousness without works, Saying, Blessed are they whose iniquities are forgiven, and whose sins are covered.
Ephesians 2:8- For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: Not of works, lest any man should boast.
Romans 9:31-33 -But Israel, which followed after the law of righteousness, hath not attained to the law of righteousness. Wherefore? Because they sought it not by faith, but as it were by the works of the law. For they stumbled at that stumblingstone; As it is written, Behold, I lay in Sion a stumblingstone and rock of offence: and whosoever believeth on him shall not be ashamed.
1 Peter 2:21-24 -For even hereunto were ye called: because Christ also suffered for us, leaving us an example, that ye should follow his steps: Who did no sin, neither was guile found in his mouth: Who, when he was reviled, reviled not again; when he suffered, he threatened not; but committed himself to him that judgeth righteously: Who his own self bare our sins in his own body on the tree, that we, being dead to sins, should live unto righteousness: by whose stripes ye were healed.
Romans 4:25 -Who was delivered for our offences, and was raised again for our justification.
Romans 5:16 -And not as it was by one that sinned, so is the gift: for the judgment was by one to condemnation, but the free gift is of many offences unto justification.
Romans 5:18 -Therefore as by the offence of one judgment came upon all men to condemnation; even so by the righteousness of one the free gift came upon all men unto justification of life.