People who are unforgiving and full of pride often go to great lengths to make themselves look righteous and right to the outside world. I think 2nd Timothy chapter 3 verse 5 (KJVS) describes them best when it states:
"Having a form of godliness, but denying the power thereof..."
When the Pharisees accused Jesus of casting out demons by the power of Beelzebul, the prince of demons, Jesus retorted, "You brood of vipers, how can you who are evil say anything good? For the mouth speaks what the heart is full of."
James 4:6 NIV....“God opposes the proud but shows favor to the humble.” We are no better than one another in our humanity. Confidence and arrogance are two entirely different things. Confidence is trusting in God's promises and His ability to bring them to pass. Confidence is also trusting in the gifts and abilities God has placed in you. Arrogance is believing you are somehow above other human beings in ability or intellect. Arrogance is believing you are entitled to have an advantage over others because you are somehow special and better than the other people around you.
Remember these admonishments in the scriptures:
Romans 12:3 KJVS For I say, through the grace given unto me, to every man that is among you, not to think of himself more highly than he ought to think; but to think soberly, according as God hath dealt to every man the measure of faith.
Acts 10:34-35 KJVS Then Peter opened his mouth, and said, Of a truth I perceive that God is no respecter of persons: But in every nation he that feareth him, and worketh righteousness, is accepted with him.
Proverbs 8:13 KJVS The fear of the Lord is to hate evil: pride, and arrogancy, and the evil way, and the froward mouth, do I hate.
Proverbs 16:18 KJVS Pride goeth before destruction, and an haughty spirit before a fall.
And of course, let's not forget Pharisees like to point out your sin but somehow can't remember their own sin as shown in John chapter 8:
John 8:3-9 KJVS
And the scribes and Pharisees brought unto him a woman taken in adultery; and when they had set her in the midst, They say unto him, Master, this woman was taken in adultery, in the very act. Now Moses in the law commanded us, that such should be stoned: but what sayest thou? This they said, tempting him, that they might have to accuse him. But Jesus stooped down, and with his finger wrote on the ground, as though he heard them not. So when they continued asking him, he lifted up himself, and said unto them, He that is without sin among you, let him first cast a stone at her. And again he stooped down, and wrote on the ground. And they which heard it, being convicted by their own conscience, went out one by one, beginning at the eldest, even unto the last: and Jesus was left alone, and the woman standing in the midst.
Do not let the Pharisees in your life make you feel guilty or less than what God has created you to be. If there is sin in your life, repent and receive God's forgiveness. You are to move forward in life and leave that sin in the past knowing God receives you.
According to scripture, the Pharisees in your life are no better than you are except that they may hide their sin better than you. Matthew 23:25-26 NIV states, “Woe to you, teachers of the law and Pharisees, you hypocrites! You clean the outside of the cup and dish, but inside they are full of greed and self-indulgence. Blind Pharisee! First clean the inside of the cup and dish, and then the outside also will be clean."
Remember Romans 8:1-2 KJVS:
There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit. For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death.