Preaching.

Some people like to say, "Christians shouldn't go around preaching -- they should just love everyone."  Well, if you believe that, you're certainly entitled to your opinion.  But don't call yourself a Christian, or claim that you love Jesus, because you're ignoring his word and many commands to preach:

Isaiah 58:1
Cry aloud, spare not, lift up thy voice like a trumpet, and shew my people their transgression, and the house of Jacob their sins.

Matthew 10:7
And as ye go, preach, saying, The kingdom of heaven is at hand.

Matthew 10:27
What I tell you in darkness, that speak ye in light: and what ye hear in the ear, that preach ye upon the housetops.

Mark 3:14
And he ordained twelve, that they should be with him, and that he might send them forth to preach,

Mark 16:15
And he said unto them, Go ye into all the world, and preach the gospel to every creature.

Acts 10:42
And he commanded us to preach unto the people, and to testify that it is he which was ordained of God to be the Judge of quick and dead.

Romans 10:13-17
For whosoever shall call upon the name of the Lord shall be saved. How then shall they call on him in whom they have not believed? and how shall they believe in him of whom they have not heard? and how shall they hear without a preacher? And how shall they preach, except they be sent? as it is written, How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things! But they have not all obeyed the gospel. For Esaias saith, Lord, who hath believed our report? So then faith cometh by hearing, and hearing by the word of God.

1 Corinthians 1:17
For Christ sent me not to baptize, but to preach the gospel: not with wisdom of words, lest the cross of Christ should be made of none effect.

1 Corinthians 1:21
For after that in the wisdom of God the world by wisdom knew not God, it pleased God by the foolishness of preaching to save them that believe.

1 Corinthians 9:14
Even so hath the Lord ordained that they which preach the gospel should live of the gospel.

1 Corinthians 9:16
For though I preach the gospel, I have nothing to glory of: for necessity is laid upon me; yea, woe is unto me, if I preach not the gospel!

2 Timothy 4:2-4
Preach the word; be instant in season, out of season; reprove, rebuke, exhort with all longsuffering and doctrine. For the time will come when they will not endure sound doctrine; but after their own lusts shall they heap to themselves teachers, having itching ears; And they shall turn away their ears from the truth, and shall be turned unto fables.