Some sins just seem to stand out more than others, this sin to me even sounds bad!! The results of the flesh are never pleasing to God. The pride that some exalt in the name of religion emphasizes the total rejection that really hurts the heart of the true believer. Remember, the true believer has a heart of “love for the brethren”!! The words they speak are slanderous and reproachful. Their evil opinions lead to evil living for they follow not the things of God, but rather they “chiefly walk after the flesh”!!

2 Pet 2:10
10 But chiefly them that walk after the flesh in the lust of uncleanness, and despise government. Presumptuous are they, selfwilled, they are not afraid to speak evil of dignities. (KJV)

Presumptuous: a daring man, audacious, (recklessly bold) intrepidly, (resolute fearlessness) to speak or to act without warrant, to speak proudly, OT “to boil up” to “act proudly”!! NT “with a high hand” boldness in a “bad sense” “shameless and irreverent daring”

Ps 19:12-14
12 Who can understand his errors? cleanse thou me from secret faults.
13 Keep back thy servant also from presumptuous sins; let them not have dominion over me: then shall I be upright, and I shall be innocent from the great transgression.
14 Let the words of my mouth, and the meditation of my heart, be acceptable in thy sight, O LORD, my strength, and my redeemer.
(KJV)

What are we to do?

Matt 18:4
4 Whosoever therefore shall humble himself as this little child, the same is greatest in the kingdom of heaven.
(KJV)

Matt 23:12
12 And whosoever shall exalt himself shall be abased; and he that shall humble himself shall be exalted. (KJV)

2 Cor 12:21
21 And lest, when I come again, my God will humble me among you, and that I shall bewail many which have sinned already, and have not repented of the uncleanness and fornication and lasciviousness which they have committed.
(KJV)

James 4:6
6 But he giveth more grace. Wherefore he saith, God resisteth the proud, but giveth grace unto the humble.
(KJV)

James 4:10
10 Humble yourselves in the sight of the Lord, and he shall lift you up.
(KJV)

1 Pet 5:5
5 Likewise, ye younger, submit yourselves unto the elder. Yea, all of you be subject one to another, and be clothed with humility: for God resisteth the proud, and giveth grace to the humble.
(KJV)

1 Pet 5:6
6 Humble yourselves therefore under the mighty hand of God, that he may exalt you in due time:
(KJV)