Yes, most people think that Christians are arrogant when they proclaim the truth of the Bible and the truth of the gospel.  They cannot understand that people who have been searching for the truth are really ecstatic when they find it.

The best analogy to the Christian’s joy at having found the truth is the parable of the lost coin. A lady lost a coin. It is not just any other coin.  The customs of the time lend some light on a cultural tradition: women who are betrothed or married are given gold or silver coins which are attached like charms on a chain.  The chain is worn around the head or near the face.  It is usually a wedding/engagement gift and it is very precious.  It is the woman’s family’s entire wealth.  So when she lost one of the coins, she was indefatigable.  She searched her entire house, turning everything upside down and inside out, sweeping as she goes until she found the coin. And when she found the coin, she rejoiced.  She was so happy, she went out on the street and told people she met how she has found what she has once lost.

Was she being arrogant when she went out on the street to tell people that she has found what she had lost? Not in the very least.  The sinner is lost until Christ finds him.  The truth of the gospel, the right to be a son of God was lost to us and when we found it, we rejoiced. Is there arrogance in a Christian’s rejoicing?

Christians are like this woman.  They have found a treasure — the knowledge of Christ, and they are shouting for joy, telling everyone they meet how they too can find this treasure.  This is not arrogance, this is joy unspeakable.

Second, the truth is not a thing we can hold.  The truth is a person: Jesus Christ.  Other religions claim that they have the truth, or that they speak the truth but only Jesus Christ has ever claimed that He is the truth.

Since the truth is not a thing, it cannot be relative.  The truth of Jesus Christ is absolute.  People who think that truth is relative have one truth that they are trying to avoid.  They are avoiding the truth of sin.

They are willing to concede that they are imperfect; that they have flaws, and that they may have made bad decisions or mistakes, but they will not admit that they have sinned.  They will not admit that they are sinners.

When people refuse to admit that they are sinners or that they have sinned, they are in fact rejecting God’s truth: that all have sinned and come short of the glory of God.  They are also rejecting the truth that Christ came to save sinners.   To be a sinner is to be lost.  As lost as the coin in the parable.  It may be valuable, it may be costly, but it is separated from all that made the coin meaningful.  It was in the dust, in the dark and it was lost. Christ came to seek and to save that which was lost. If people cannot admit that they are sinners, they cannot admit that they are lost.  And when people refuse to admit that they are lost, they do not need salvation.  To refuse to admit that one is a sinner, one is lost and one is in need of a Savior is to defy God. It is the stance of a person who has rejected the truth and salvation of Jesus Christ.

It is true that the Bible says in Matthew 7:1 “Judge not that ye be not judged.” Unfortunately for that lady friend of yours, she took one verse and took its meaning out of context: she did not bother to read the following verse.  The next verse reads: “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.”

Jesus Christ said those verses.  And he was talking to the Pharisees who were fond of judging people by what they wore or how much they gave into the treasury.  They were judging people superficially.  So Jesus Christ warned the Pharisees that the same criteria of judgment that they use against others will be used to judge them as well.

The verses do not preclude all manner of judgments. We are to judge all things by the truth of the Scripture.  And even in ordinary life, it is impossible not to judge.  When you are at the supermarket and you want to buy apples, there’s this whole bin full of apples and what do you do?  Do you just get the ones nearest you?  You do not.  You look at each one and you scrutinize each for bruises.  You reject some and put them back in the bin; you accept some and put them in a bag and in your cart. We all judge.  But Jesus Christ cautions us to use the right kind of judgment. For with what judgment we use on others, the same judgment will be used on us.

Finally, when a Christian who has found the Way, the Truth, and the Life meets someone who is still on the road to destruction, what should that Christian do? Just let that person who is on the road to destruction go on his merry way knowing full well that danger is present and imminent?  No, of course not. That Christian talks to that person and tells him that he is on the road to destruction.

If the person believes the Christian and gets out of the road that leads to destruction, he is spared the danger of destruction.  But if despite the Christian’s warning the person refuses to leave the road to destruction, what can the Christian do?

Warning people of sin, the judgment of sin and the punishment of sin is the most loving and caring thing Christians can do.  If people are turned off and they think we are ignorant and arrogant because we have the nerve to warn them against sin, they are certainly entitled to their opinion. But before God, we are free from responsibility because we have done our job to warn them.

Christians are watchmen on a tower.  Our duty is to sound the alarm and warn people.  They can ignore us, they can laugh at us, they can call us names and even condemn us.  But we have to do our job as watchmen.

I hope that I have answered your questions and I hope I gave you some insight. God bless you.