Whether a person is a Christian or not everyone faces criticism and judgment from others, however those who judge others have no room to judge as they themselves have faults. In fact many people will find and point out faults of others in order to make themselves look less revealing.

Coincidentally, there are different types of judgment, there is of course hypocrisy, which is severely criticizing and deceiving others while appearing helpful. And there is discernment, which is the ability to form an objective opinion based on ones abilities or mistakes.

True Christian's will not criticize one's faults, but help each other improve them. Also, true Christian's will not get offended when they are confronted by any error that others have noticed.

Scriptures About Hypocrisy (Critical Judgment):
"Judge not, that ye be not judged. For with what judgment ye judge, ye shall be judged: and with what measure ye mete, it shall be measured to you again. And why beholdest thou the mote that is in thy brother's eye, but considerest not the beam that is in thine own eye? Or how wilt thou say to thy brother, Let me pull out the mote out of thine eye; and, behold, a beam is in thine own eye? Thou hypocrite, first cast out the beam out of thine own eye; and then shalt thou see clearly to cast out the mote out of thy brother's eye." - Matthew 7:1-5

"Therefore thou art inexcusable, O man, whosoever thou art that judgest: for wherein thou judgest another, thou condemnest thyself; for thou that judgest doest the same things. But we are sure that the judgment of God is according to truth against them which commit such things. And thinkest thou this, O man, that judgest them which do such things, and doest the same, that thou shalt escape the judgment of God?" - Romans 2:1-3

"Servants, obey in all things your masters according to the flesh; not with eyeservice, as menpleasers; but in singleness of heart, fearing God; And whatsoever ye do, do it heartily, as to the Lord, and not unto men; Knowing that of the Lord ye shall receive the reward of the inheritance: for ye serve the Lord Christ. But he that doeth wrong shall receive for the wrong which he hath done: and there is no respect of persons." - Colossians 3:22-25

Scriptures About Judging (Discernment):
"But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned. But he that is spiritual judgeth all things, yet he himself is judged of no man. For who hath known the mind of the Lord, that he may instruct him? but we have the mind of Christ." - I Corinthians 2:14-16

"Judge not according to the appearance, but judge righteous judgment." -7:24