Matthew 23:11

But let him that is greatest among you be your minister: and whosoever will exalt himself shall be abased,

Galatians 5:13

For, brethren, ye have been called unto liberty; only abuse not this liberty for an occasion to indulge the flesh, but by mutual love serve one another.

Matthew 20:26-27

it shall not be so among you; but whosoever would be great among you, let him be your minister, and whoever would be chief among you,

Mark 10:43-44

But it shall not be so among you: but whoever would be great among you shall be your minister;

Luke 22:26-27

But ye shall not do so: but let the greatest among you be as the younger; and he that presides as he that serveth.

John 13:14-15

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

1 Corinthians 9:19

For though I am free from all, yet I have made myself a servant to 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 the sake of Jesus.

2 Corinthians 11:23

so am I: are they ministers of Christ? (if I may speak as a fool) I am more: in labors more abundant, in stripes far exceeding, in prisons more frequently, and often even in deaths.

Philippians 2:5-8

Let the same 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
it shall not be so among you; but whosoever would be great among you, let him be your minister, and whoever would be chief among you,
Mark 10:43
But it shall not be so among you: but whoever would be great among you shall be your minister;
Luke 22:26
But ye shall not do so: but let the greatest among you be as the younger; and he that presides as he that serveth.
John 13:14
If I then your Lord and Master have washed your feet, ye also ought to wash one another's feet.
1 Corinthians 9:19
For though I am free from all, yet I have made myself a servant to 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 the sake of Jesus.
2 Corinthians 11:23
so am I: are they ministers of Christ? (if I may speak as a fool) I am more: in labors more abundant, in stripes far exceeding, in prisons more frequently, and often even in deaths.
Galatians 5:13
For, brethren, ye have been called unto liberty; only abuse not this liberty for an occasion to indulge the flesh, but by mutual love serve one another.
Philippians 2:5
Let the same mind be in you, which was also in Christ Jesus: