A great, to the point summation on the grading of sin, as well as exactly what sin can not be forgiven by Michael at Altruistico. Please head over to his place and read the rest of this great post. Blessings and enjoy!
No sin is greater than another sin in the eternal sense. All sin separates us from God, and all sin needs to be atoned for. Also, there is no “greatest sin” in the sense of “mortal” and “venial” sins, as the Catholic Church teaches. All sins are “mortal” sins in that even one sin makes the offender worthy of spiritual death and eternal separation from God. At the same time, the Bible does state that on the day of judgment some sins will merit greater punishment than others (Matthew 11:22, 24; Luke 10:12, 14).
Jesus also referred to one sin being a “greater” sin (although not the “greatest”) in John 19:11. Speaking to Pontius Pilate, He said that the one who had handed Him over to Pilate was guilty of the “greater sin.” He meant that the guilt of the person who delivered Him to Pilate, whether Judas or Caiaphas, was greater than Pilate’s because of the deliberate and cold act of handing Jesus over after seeing the overwhelming evidence of His miracles and teaching, all pointing unmistakably to Him as the Messiah and the Son of God. That sin was greater than that of those who were ignorant of Him. This could indicate that those who have been given knowledge of Jesus as the Son of God and still reject Him would be subject to a greater punishment than those who remain ignorant of Him: “If you were blind, you would not be guilty of sin; but now that you claim you can see, your guilt remains” (John 9:41)……..read the rest of the post here: What is the greatest sin?