Exodus 32:25-29 And when Moses saw that the people had broken loose (for Aaron had let them break loose, to the derision of their enemies),  then Moses stood in the gate of the camp and said, "Who is on the Lord's side? Come to me." And all the sons of Levi gathered around him.  And he said to them, "Thus says the Lord God of Israel, 'Put your SWORD on your side each of you, and go to and fro from gate to gate throughout the camp, and each of you kill his brother and his companion and his neighbor.' "  And the sons of Levi did according to the word of Moses. And that day about three thousand men of the people fell.  And Moses said, "Today you have been ordained for the service of the Lord, each one at the cost of his son and of his brother, so that he might bestow a blessing upon you this day."
Matthew 10:34 "Do not think that I have come to bring peace to the earth. I have not come to bring peace, but a SWORD.  For I have come to set a man against his father, and a daughter against her mother, and a daughter-in-law against her mother-in-law.  And a person's enemies will be those of his own household.
 Whoever loves father or mother more than me is not worthy of me, and whoever loves son or daughter more than me is not worthy of me.  And whoever does not take his cross and follow me is not worthy of me.  Whoever finds his life will lose it, and whoever loses his life for my sake will find it.
Luke 14:25-33 Now great crowds accompanied him, and he turned and said to them,  "If anyone comes to me and does not HATE HIS OWN FATHER AND MORTHER AND WIFE AND CHILDREN AND BROTHERS AND SISTERS, YES AND EVEN HIS OWN LIFE, he cannot be my disciple.  Whoever does not bear his own cross and come after me cannot be my disciple.....  So therefore, any one of you who does not renounce all that he has cannot be my disciple.
(Luke has the same material as Matthew) Luke 12:49-53 "I came to cast fire on the earth, and would that it were already kindled!  I have a baptism to be baptized with, and how great is my distress until it is accomplished!  Do you think that I have come to give peace on earth? No, I tell you, but rather division.  For from now on in one house there will be five divided, three against two and two against three.  They will be divided, father against son and son against father, mother against daughter and daughter against mother, mother-in-law against her daughter-in-law and daughter-in-law against mother-in-law."
In Luke and Matthew, Jesus describes who cannot be His disciple, or to state it positively who can be his disciple. The very same question was addressed by Moses, "Who is on the Lord's side?" Jesus answers that question. He is a greater High Priest than any Levite. Jesus will come with His own sword and strike down the Nations. He is Joshua. Yehoshua. Jesus.
Then I saw heaven opened, and behold, a white horse! The one sitting on it is called Faithful and True, and in righteousness he judges and makes war.  His eyes are like a flame of fire, and on his head are many diadems, and he has a name written that no one knows but himself.  He is clothed in a robe dipped in blood, and the name by which he is called is The Word of God.  And the armies of heaven, arrayed in fine linen, white and pure, were following him on white horses.  From his mouth comes a sharp sword with which to strike down the nations, and he will rule them with a rod of iron. He will tread the winepress of the fury of the wrath of God the Almighty.  On his robe and on his thigh he has a name written, King of kings and Lord of lords.
 Then I saw an angel standing in the sun, and with a loud voice he called to all the birds that fly directly overhead, "Come, gather for the great supper of God,  to eat the flesh of kings, the flesh of captains, the flesh of mighty men, the flesh of horses and their riders, and the flesh of all men, both free and slave, both small and great."  And I saw the beast and the kings of the earth with their armies gathered to make war against him who was sitting on the horse and against his army.  And the beast was captured, and with it the false prophet who in its presence had done the signs by which he deceived those who had received the mark of the beast and those who worshiped its image. These two were thrown alive into the lake of fire that burns with sulfur.  And the rest were slain by the sword that came from the mouth of him who was sitting on the horse, and all the birds were gorged with their flesh.