Behold, how good and how pleasant it is for brethren to dwell together in unity! (Psalms 133:1)
Jesus said, “You know that the rulers of the Gentiles lord it over them, and their great ones exercise authority over them. It shall not be so among you, but whoever desires to become great among you shall be your servant. Whoever desires to be first among you shall be your bondservant." (Matthew 20:25-27)
But he who is greatest among you will be your servant. Whoever exalts himself will be humbled, and whoever humbles himself will be exalted. (Matthew 23:11-12)
Jesus asked them, “What were you arguing among yourselves on the way?” But they were silent, for they had disputed one with another on the way about who was the greatest. He sat down, and called the twelve; and he said to them, “If any man wants to be first, he shall be last of all, and servant of all.” (Mark 9:33-35)
Don't be conformed to this world, but be transformed by the renewing of your mind, so that you may prove what is the good, well-pleasing, and perfect will of God. For I say, through the grace that was given me, to every man who is among you, not to think of himself more highly than he ought to think; but to think reasonably, as God has apportioned to each person a measure of faith. For even as we have many members in one body, and all the members don't have the same function, so we, who are many, are one body in Christ, and individually members one of another. Having gifts differing according to the grace that was given to us... (Romans 12:2-6)
Be devoted to one another in brotherly love; give preference to one another in honor. (Romans 12:10)
Likewise, you younger ones, be subject to the elder. Yes, all of you gird yourselves with humility, to subject yourselves to one another; for God resists the proud, but gives grace to the humble. Humble yourselves therefore under the mighty hand of God, that he may exalt you in due time; casting all your worries on him, because he cares for you. (1 Peter 5:5-7)
If there is therefore any exhortation in Christ, if any consolation of love, if any fellowship of the Spirit, if any tender mercies and compassion, let joy be full, by being like-minded, having the same love, being of one accord, of one mind; doing nothing through rivalry or through conceit, but in humility, each counting others better than himself; each of you not just looking to his own things, but each of you also to the things of others. (Philippians 2:1-4)
Put on therefore, as God's chosen ones, holy and beloved, a heart of compassion, kindness, lowliness, humility, and perseverance; bearing with one another, and forgiving each other, if any man has a complaint against any; even as Christ forgave you, so you also do. Above all these things, walk in love, which is the bond of perfection. And let the peace of God rule in your hearts, to which also you were called in one body; and be thankful. (Colossians 3:12-15)
Be all like-minded, compassionate, loving as brothers, tenderhearted, courteous, not rendering evil for evil, or reviling for reviling; but instead blessing; knowing that to this were you called, that you may inherit a blessing. For, he who would love life, and see good days, let him keep his tongue from evil, and his lips from speaking deceit. Let him turn away from evil, and do good. Let him seek peace, and pursue it. For the eyes of the Lord are on the righteous, and his ears open to their prayer; but the face of the Lord is against those who do evil. (1 Peter 3:8-12)
Those who belong to Christ have crucified the flesh with its passions and lusts. If we live by the Spirit, let's also walk by the Spirit. Let's not become conceited, provoking one another, and envying one another. (Galatians 5:24-26)
Now who is he who will harm you, if you become imitators of that which is good? But even if you should suffer for righteousness' sake, you are blessed. Don't fear what others fear, neither be troubled. But sanctify the Lord God in your hearts; and always be ready to give an answer to everyone who asks you a reason concerning the hope that is in you, with humility and fear: having a good conscience; that, while you are spoken against as evildoers, they may be disappointed who curse your good manner of life in Christ. For it is better, if the will of God should so will, that you suffer for doing well than for doing evil. (1 Peter 3:13-17)
Therefore... walk worthily of the calling with which you were called, with all lowliness and humility, with patience, bearing with one another in love; being eager to keep the unity of the Spirit in the bond of peace. There is one body, and one Spirit, even as you also were called in one hope of your calling; one Lord, one faith, one baptism, one God and Father of all, who is over all, and through all, and in us all. (Ephesians 4:1-6)