What exactly was the high preist supposed to do?

Be a mediator between אלוהים(God) and Israel (or אלוהים and man).

The Old Covenant is when you seek to have a relationship with אלוהים and ישוע(Yeshua) apart from the רוח קודש (Ruach HaKodesh).

The New Covenant is not just the covenant written on parchment, but when its written on the heart, which means you have a change of heart(Ezekiel 36:22-32). The New Covenant is a change of heart! Has the heart been truly changed if we negate the 7th day Sabbath and the rest of His Appointed Days and Feasts?

Why did we need a new covenant? Because the original covenant couldn’t do what אלוהים intended. What is it that אלוהים intended? A change of heart!!

The Aaronic priest could not know if your heart was right, if you were offering your sacrifice or offering for the right reasons/motives. So literally one could offer their pesach lamb and people would think they are just, right, and holy without knowing their heart was totally against obeying אלוהים.

Hence why obedience to אלוהים is the highest form of worship, not song, dance, flag or hand waving, leading or being in charge of the churches finances. A heart desiring to obey despite the cost or shame of modern day thought, that is a righteous heart, that is why Job, Noah, David and many others were considered righteous. Perfection had nothing to do with it!

Going through the motions, a high priest couldnt know the difference, what we needed was a Priest who could change the heart, who could cleanse the conscience from dead works, we needed a priest who could “make us willing,” to do what He wants us to do, not what the flesh or tradition tells us to do. The Aaronic priesthood could not change the heart.

When we love, its easy to obey or do what is right. But when we are deceived we believe what appeases the normality because true belief requires change. Change is scary when we dont understand why or how. However when a man attempts to seduce a woman or gain/win her hand, change is easy because he loves her or he seeks her flesh, that relationship may or may not be a covenant relationship.

So before you declare you are walking in a new covenant relationship, ask yourself and prove yourself according to Scripture, is the Torah written on your heart? Or are you cemented in a hand-me-down belief that Grace removes a loving heart to obey?

If grace solves the question then dont you dare get mad at your kids for disregarding your beliefs!!$$