Why speak Truth in Love?

Please consider the following Scripture references.

3 Dear friends, although I was very eager to write to you about the salvation we share, I felt I had to write and urge you to contend for the faith that was once for all entrusted to the saints. 4 For certain men whose condemnation was written about long ago have secretly slipped in among you. They are godless men, who change the grace of our God into a license for immorality and deny Jesus Christ our only Sovereign and Lord. (Jude)

3 When the foundations are being destroyed, what can the righteous do?" ( Psalms 11)

1 The word of the LORD came to me: 2 "Son of man, speak to your countrymen and say to them: 'When I bring the sword against a land, and the people of the land choose one of their men and make him their watchman, 3 and he sees the sword coming against the land and blows the trumpet to warn the people, 4 then if anyone hears the trumpet but does not take warning and the sword comes and takes his life, his blood will be on his own head. 5 Since he heard the sound of the trumpet but did not take warning, his blood will be on his own head. If he had taken warning, he would have saved himself. 6 But if the watchman sees the sword coming and does not blow the trumpet to warn the people and the sword comes and takes the life of one of them, that man will be taken away because of his sin, but I will hold the watchman accountable for his blood.'
7 "Son of man, I have made you a watchman for the house of Israel; so hear the word I speak and give them warning from me . 8 When I say to the wicked, 'O wicked man, you will surely die,' and you do not speak out to dissuade him from his ways, that wicked man will die for* his sin, and I will hold you accountable for his blood. 9 But if you do warn the wicked man to turn from his ways and he does not do so, he will die for his sin, but you will have saved yourself. (Ezekiel 33).

Therefore, I declare to you today that I am innocent of the blood of all men. 27 For I have not hesitated to proclaim to you the whole will of God. 28 Keep watch over yourselves and all the flock of which the Holy Spirit has made you overseers.* Be shepherds of the church of God,* which he bought with his own blood. 29 I know that after I leave, savage wolves will come in among you and will not spare the flock. 30 Even from your own number men will arise and distort the truth in order to draw away disciples after them. 31 So be on your guard! Remember that for three years I never stopped warning each of you night and day with tears.
32 "Now I commit you to God and to the word of his grace, which can build you up and give you an inheritance among all those who are sanctified. (Acts 20).

10 As soon as it was night, the brothers sent Paul and Silas away to Berea. On arriving there, they went to the Jewish synagogue. 11 Now the Bereans were of more noble character than the Thessalonians, for they received the message with great eagerness and examined the Scriptures every day to see if what Paul said was true. (Acts 17).

8 See to it that no one takes you captive through hollow and deceptive philosophy, which depends on human tradition and the basic principles of this world rather than on Christ. (Colossians 2 )

1 Dear friends, do not believe every spirit, but test the spirits to see whether they are from God, because many false prophets have gone out into the world. 2 This is how you can recognize the Spirit of God: Every spirit that acknowledges that Jesus Christ has come in the flesh is from God, 3 but every spirit that does not acknowledge Jesus is not from God. (1John 4)

8 Formerly, when you did not know God, you were slaves to those who by nature are not gods. 9 But now that you know God–or rather are known by God–how is it that you are turning back to those weak and miserable principles? Do you wish to be enslaved by them all over again?
16 Have I now become your enemy by telling you the truth? ( Galatians 4)

1 In the Lord I take refuge. How then can you say to me: "Flee like a bird to your mountain.
2 For look, the wicked bend their bows; they set their arrows against the strings to shoot from the shadows at the upright in heart.
3 When the foundations are being destroyed, what can the righteous do?" ( Psalms 11)