WHY DO WE NEED YOM KIPPUR FOR ATONEMENT, SINCE YESHUA DIED TO REMOVE OUR SINS?

Yeshua died to remove our "past sins" - not so that we could continue sinning.  Problem is, we humans do have a tendency to commit inadvertent sin, sometimes, and that's where Yom Kippur comes in.  Any sins we commit today, no matter how inadvertently, are not covered by Yeshua's death, as he died to remove our PAST sins. 

Here's proof:

Numbers 15: 30 "'But an individual who does something wrong intentionally, whether a citizen or a foreigner, is blaspheming ADONAI. That person will be cut off from his people. (CJB)

Hebrews 6: 4. But they who have once descended to immersion and have tasted the gift from heaven and have received the Ruach haKodesh 5. and have tasted the good Word of Elohim and the power of the world to come, 6. cannot again sin and a second time be renewed to repentance; or a second time execute him on a stake and insult the Son of Elohim.

7. For the earth that drinks the rain which comes often upon it and produces the herb that is of use to those for whom it is cultivated, receives a blessing from Elohim. 8. But if it should put forth thorns and briers, it would be discarded and be approaching closely to a curse, and its end would be a conflagration. (AENT)

NOTE: Huge contrast between Aramaic and Greek. The Greek reads: "once having been enlightened..." This "enlightening" seems logical until we look at Aramaic: "But they who have once descended to immersion..." The difference is acute, since baptism is clearly a subject being introduced just two verses earlier. The reason for the Greek redaction to "enlightenment" may well have been due to early Gnostic influence that stressed Mashiyach's knowledge over his actual power and incarnation of Deity. See also Hebrews 10:32.

Hebrews 10: 26 For if we deliberately continue to sin after receiving the knowledge of the truth, there no longer remains a sacrifice for sins, 27 but only the terrifying prospect of Judgment, or raging fire that will consume the enemies. (CJB)

The above Scripture is not referring to those unclean bondages that dwell in our flesh but to the conscious choices believers make. It refers not to our unintentional sins but to those we pursue knowingly and willingly.