The first recorded words of Jesus in ministry were the same as John the Baptist. They both started their ministry with "Repent."
We are accused of being judgmental, but we are simply asking people to judge themselves before they are judged by God.
We ask questions so people can compare themselves to God's standard and see where they stand before the Day of Judgment. People need to first be made aware of their NEED for a Savior in order for the Gospel to make sense.
Does that mean some people might be offended? How many are saved by this method of evangelism?
Both questions have the same answer. It simply doesn't matter, because it's Biblical. We are to be obedient to preach the Gospel, and anyone who preaches a different Gospel is to be accursed (Galatians 1:6-8). The Gospel is ALWAYS Law to the proud, grace to the humble. So often these days, the Gospel is watered down with love and grace preached, but no mention of God's holiness, His righteousness, and His wrath against disobedient sinners.
But, aren't we all children of God? That's not what the Bible says (1 John 3:10)
So, let's see if the message was sugar-coated in the Bible.
John the Baptist called the prideful Pharisees and Scribes "you brood of vipers" in Matt 3:7. He didn't say, "we're all God's children" or "Jesus loves you." He spoke the Truth and sometimes that was a hard truth. He was eventually beheaded.
Jesus said it in Matt 12:34, and also tells them "you who are evil." In verse 39 He called them a "wicked and adulterous generation" for seeking a miraculous sign.
In Matt 23, Jesus called people "hypocrites", "sons of hell", "blind", "full of greed and self-indulgence", "full of hypocrisy and wickedness", and asks them "how will you escape being condemned to hell?"
He also said there are none found good, and yet so many people, professed Christians and unbelievers alike claim that they are "good" people, just like the Bible says they will in Prov 20:6.
Paul was beaten and whipped with many attempts to kill him because of what he preached. I don't think it was the warm fuzzy "Jesus loves you and has a wonderful plan for your life."
Jesus said that if the world hated Him, they would also hate us. The world killed Him, and there have been many Christian martyrs since, and it continues to this day. But He rose from the dead, defeating death forever. We trust in Him alone, so preach His Gospel and no other, following His example. Law to the proud, grace to the humble (Prov 3:34, 1Pet 5:5, James 4:6).
How can you determine if someone is proud or humble? Simply ask them this question, whether they are a professed Christian or unbeliever: Would you consider yourself to be a good person?
Then take them through the Good Person Test to see if they truly are good by God's standard.
Only then can one see their need for a Savior, and then repent and trust in Him alone for their salvation. There is no other way (John 14:6, Acts 4:12), and as a believer, you will be held accountable (Eze 33:8-9, Acts 20:26-27).