Read the four first verses below and understand the main points and what it teaches about how to treat others.
Be devoted to one another in brotherly love. Honor one another above yourselves.
Do nothing out of selfish ambition or vain conceit, but in humility consider others better than yourselves.  Each of you should look not only to your own interests, but also to the interests of others.
∑1 Timothy 4:12:
Don't let anyone look down on you because you are young, but set an example for the believers in speech, in life, in love, in faith and in purity.
What causes fights and quarrels among you? Don't they come from your desires that battle within you?  You want something but don't get it. You kill and covet, but you cannot have what you want. You quarrel and fight. You do not have, because you do not ask God.  When you ask, you do not receive, because you ask with wrong motives, that you may spend what you get on your pleasures.
1)Why do we have a tough time respecting others?
2)Do we have less respect for people we know & love?
Human life has value and worth from Godís point of view:
Genesis 1:26-31 (God created humans in his image)
Then God said, "Let us make man in our image, in our likeness, and let them rule over the fish of the sea and the birds of the air, over the livestock, over all the earth, and over all the creatures that move along the ground."  So God created man in his own image, in the image of God he created him; male and female he created them.  God blessed them and said to them, "Be fruitful and increase in number; fill the earth and subdue it. Rule over the fish of the sea and the birds of the air and over every living creature that moves on the ground."  Then God said, "I give you every seed-bearing plant on the face of the whole earth and every tree that has fruit with seed in it. They will be yours for food.  And to all the beasts of the earth and all the birds of the air and all the creatures that move on the ground--everything that has the breath of life in it--I give every green plant for food." And it was so.  God saw all that he had made, and it was very good. And there was evening, and there was morning--the sixth day.
Psalm 139:1-24 (God is intimately involved with us even before we are born)
O Lord, you have searched me and you know me.  You know when I sit and when I rise; you perceive my thoughts from afar.  You discern my going out and my lying down; you are familiar with all my ways.  Before a word is on my tongue you know it completely, O Lord.  You hem me in--behind and before; you have laid your hand upon me.  Such knowledge is too wonderful for me, too lofty for me to attain.  Where can I go from your Spirit? Where can I flee from your presence?  If I go up to the heavens, you are there; if I make my bed in the depths, you are there.  If I rise on the wings of the dawn, if I settle on the far side of the sea,  even there your hand will guide me, your right hand will hold me fast.  If I say, "Surely the darkness will hide me and the light become night around me,"  even the darkness will not be dark to you; the night will shine like the day, for darkness is as light to you.  For you created my inmost being; you knit me together in my mother's womb.  I praise you because I am fearfully and wonderfully made; your works are wonderful, I know that full well.  My frame was not hidden from you when I was made in the secret place. When I was woven together in the depths of the earth,  your eyes saw my unformed body. All the days ordained for me were written in your book before one of them came to be.  How precious to me are your thoughts, O God! How vast is the sum of them!  Were I to count them, they would outnumber the grains of sand. When I awake, I am still with you.  If only you would slay the wicked, O God! Away from me, you bloodthirsty men!  They speak of you with evil intent; your adversaries misuse your name.  Do I not hate those who hate you, O Lord, and abhor those who rise up against you?  I have nothing but hatred for them; I count them my enemies.  Search me, O God, and know my heart; test me and know my anxious thoughts.  See if there is any offensive way in me, and lead me in the way everlasting.
God wants to have friendship and fellowship with us. (Eph. 2:7-10; 1 Timothy 2:3-6)
in order that in the coming ages he might show the incomparable riches of his grace, expressed in his kindness to us in Christ Jesus.  For it is by grace you have been saved, through faith--and this not from yourselves, it is the gift of God--  not by works, so that no one can boast.  For we are God's workmanship, created in Christ Jesus to do good works, which God prepared in advance for us to do.
This is good, and pleases God our Savior,  who wants all men to be saved and to come to a knowledge of the truth.  For there is one God and one mediator between God and men, the man Christ Jesus,  who gave himself as a ransom for all men--the testimony given in its proper time.
God promises that we can never be lost to his love. (Romans 8:38-39)
For I am convinced that neither death nor life, neither angels nor demons, neither the present nor the future, nor any powers,  neither height nor depth, nor anything else in all creation, will be able to separate us from the love of God that is in Christ Jesus our Lord.