Selfish pride can be defined as "excessive confidence or glorification in one's self, possessions or nation." The concept is found in scripture, along with pride itself, in words such as arrogance, haughtiness and conceit, among others, all of which are opposite of Godly humility. The wrongness of self-centered pride is essentially twofold, one manifestation is spiritual the other is worldly. On a spiritual level, selfish pride inevitably leads to disregard, disrespect and disobedience to God. A good example of this in scripture is the case where self-centered pride is primarily what transformed the once-righteous Lucifer into the wicked Satan after he became too impressed with himself.
How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down to the ground, which didst weaken the nations! For thou hast said in thine heart, I will ascend into heaven, I will exalt my throne above the stars of God: I will sit also upon the mount of the congregation, in the sides of the north: I will ascend above the heights of the clouds; I will be like the most High. Isaiah 14:12-14
On a worldly level, selfish pride very often results in self-destructive behavior because, while a form of self-delusion, it isn't necessarily as much an overestimation of one's self as it is a dangerous underestimation of others. This self-destruction is not without prior evidences seen in a person's character and actions.
Pride goeth before destruction, and an haughty spirit before a fall. Proverbs 16:18
In the United States part of being an American is to be proud. Parents have taught their children to have pride in their country, their families, their work, their stuff and themselves, for many years? Is this wrong? The Bible has much to say about pride. The words "pride" and "proud" are used nearly one hundred times in scripture. What does GOD think about pride? Amazing to some, pride tops list of the famous "seven deadly sins".
These six things doth the LORD hate: yea, seven are an abomination unto him: A proud look, a lying tongue, and hands that shed innocent blood, An heart that deviseth wicked imaginations, feet that be swift in running to mischief, A false witness that speaketh lies, and he that soweth discord among brethren. Proverbs 6:16-19
All the commandments break down to only two.Love GOD and love others. Selfish pride does neither. Selfish pride is sin.
The fear of the LORD is to hate evil: pride, and arrogancy, and the evil way, and the froward mouth, do I hate. Proverbs 8:13
For the sin of their mouth and the words of their lips let them even be taken in their pride: and for cursing and lying which they speak. Psalm 59:12
For the wicked boasteth of his heart's desire, and blesseth the covetous, whom the LORD abhorreth. The wicked, through the pride of his countenance, will not seek after God: God is not in all his thoughts. Psalm 10:3-4
When pride cometh, then cometh shame: but with the lowly is wisdom. Proverbs 11:2