B. Matthew 5:43-48
‘You have heard that it was said, “You shall love your neighbor and hate your enemy.” ⁴⁴But I say to you, Love your enemies and pray for those who persecute you, ⁴⁵so that you may be children of your Father in heaven; for he makes his sun rise on the evil and on the good, and sends rain on the righteous and on the unrighteous. ⁴⁶For if you love those who love you, what reward do you have? Do not even the tax-collectors do the same? ⁴⁷And if you greet only your brothers and sisters, what more are you doing than others? Do not even the Gentiles do the same? ⁴⁸Be perfect, therefore, as your heavenly Father is perfect. 

John 13:1, 4-5, 12-16, 34-35
Now before the festival of the Passover, Jesus knew that his hour had come to depart from this world and go to the Father. Having loved his own who were in the world, he loved them to the end. . . . [Jesus] ⁴got up from the table, took off his outer robe, and tied a towel around himself. ⁵Then he poured water into a basin and began to wash the disciples’ feet and to wipe them with the towel that was tied around him. 
 12 After he had washed their feet, had put on his robe, and had returned to the table, he said to them, ‘Do you know what I have done to you? ¹³You call me Teacher and Lord—and you are right, for that is what I am. ¹⁴So if I, your Lord and Teacher, have washed your feet, you also ought to wash one another’s feet. ¹⁵For I have set you an example, that you also should do as I have done to you. ¹⁶Very truly, I tell you, servants are not greater than their master, nor are messengers greater than the one who sent them. ³⁴I give you a new commandment, that you love one another. Just as I have loved you, you also should love one another.³⁵By this everyone will know that you are my disciples, if you have love for one another.’

Matthew 26:31-40
31 ‘When the Son of Man comes in his glory, and all the angels with him, then he will sit on the throne of his glory. ³²All the nations will be gathered before him, and he will separate people one from another as a shepherd separates the sheep from the goats, ³³and he will put the sheep at his right hand and the goats at the left. ³⁴Then the king will say to those at his right hand, “Come, you that are blessed by my Father, inherit the kingdom prepared for you from the foundation of the world; ³⁵for I was hungry and you gave me food, I was thirsty and you gave me something to drink, I was a stranger and you welcomed me,³⁶I was naked and you gave me clothing, I was sick and you took care of me, I was in prison and you visited me.” ³⁷Then the righteous will answer him, “Lord, when was it that we saw you hungry and gave you food, or thirsty and gave you something to drink? ³⁸And when was it that we saw you a stranger and welcomed you, or naked and gave you clothing? ³⁹And when was it that we saw you sick or in prison and visited you?” ⁴⁰And the king will answer them, “Truly I tell you, just as you did it to one of the least of these who are members of my family, you did it to me.”