Matthew 23:11

But he who is greatest among you shall be your servant.

Galatians 5:13

For ye have been called unto liberty, brethren; only use not that liberty as a pretext for carnality, but in love be subject one to another.

Matthew 20:26-27

But thus shall it not be with you. But whosoever will be a great man among you, let him be your servant;

Mark 10:43-44

But it shall not be so with you: but whosoever will be great among you let him be your servant:

Luke 22:26-27

But ye shall not act thus: but the superior among you, let him be as the junior; and he that presideth, as he that serveth.

John 13:14-15

If therefore I have washed your feet, though the Lord and the Master; ye also ought to wash one another's feet.

1 Corinthians 9:19

For though I be free from all men, I have made myself the servant of all, that I might gain the more.

2 Corinthians 4:5

For we preach not ourselves, but Christ Jesus the Lord; and ourselves your servants for Jesus' sake.

2 Corinthians 11:23

Are they the ministers of Christ? (I speak foolishly) I am above [them]: in labours more abundantly, in stripes exceedingly more, in prisons more frequently, in the most immediate danger of death often.

Philippians 2:5-8

Let the same sentiment of mind be in you, which was also in Christ Jesus:

Treasury of Scripture Knowledge

Summary

But he that is greatest among you shall be your servant.

Bible References

General references

Matthew 20:26
But thus shall it not be with you. But whosoever will be a great man among you, let him be your servant;
Mark 10:43
But it shall not be so with you: but whosoever will be great among you let him be your servant:
Luke 22:26
But ye shall not act thus: but the superior among you, let him be as the junior; and he that presideth, as he that serveth.
John 13:14
If therefore I have washed your feet, though the Lord and the Master; ye also ought to wash one another's feet.
1 Corinthians 9:19
For though I be free from all men, I have made myself the servant of all, that I might gain the more.
2 Corinthians 4:5
For we preach not ourselves, but Christ Jesus the Lord; and ourselves your servants for Jesus' sake.
2 Corinthians 11:23
Are they the ministers of Christ? (I speak foolishly) I am above [them]: in labours more abundantly, in stripes exceedingly more, in prisons more frequently, in the most immediate danger of death often.
Galatians 5:13
For ye have been called unto liberty, brethren; only use not that liberty as a pretext for carnality, but in love be subject one to another.
Philippians 2:5
Let the same sentiment of mind be in you, which was also in Christ Jesus: