Matthew 12:32 And whosoever speaketh a word against the Son of man, it shall be forgiven him: but whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come.
Mark 3:28 Verily I say unto you, All sins shall be forgiven unto the sons of men, and blasphemies wherewith soever they shall blaspheme: 29 But he that shall blaspheme against the Holy Ghost hath never forgiveness, but is in danger of eternal damnation.
The above text is often called the unpardonable sin. But a study of the scripture shows that the ONLY sin that is unforgivable SIN is the unbelief of Jesus Christ as Lord. For when we believe
1 Corinthians 15:1-4 Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand;2 By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain.3 For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures;4 And that he was buried, and that he rose again the third day according to the scriptures:
and then act on Romans 10:9-13 9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.11 For the scripture saith, Whosoever believeth on him shall not be ashamed.12 For there is no difference between the Jew and the Greek: for the same Lord over all is rich unto all that call upon him.13 For whosoever shall call upon the name of the Lord shall be saved.
we will be saved. Ephesians 2:8-9 8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:9 Not of works, lest any man should boast, becomes real in our lives and we can rejoice in vs 10-13. 10 For we are his workmanship, created in Christ Jesus unto good works, which God hath before ordained that we should walk in them. 11 Wherefore remember, that ye being in time past Gentiles in the flesh, who are called Uncircumcision by that which is called the Circumcision in the flesh made by hands; 12 That at that time ye were without Christ, being aliens from the commonwealth of Israel, and strangers from the covenants of promise, having no hope, and without God in the world: 13 But now in Christ Jesus ye who sometimes were far off are made nigh by the blood of Christ.