Matthew 20:27

but whosoever wishes to become great among you shall be your minister; and whosoever wishes to be first among you shall be your servant;

Matthew 18:4

Whosoever, therefore, shall humble himself as this little child, he is greatest in the Kingdom of Heaven.

Mark 9:33-35

And they came to Capernaum. And, when He was in the house, He asked them, "Concerning what were ye reasoning in the way?"

Luke 22:26

But ye are not so; but let the greater among you become as the younger, and he who leads as he who serves.

Acts 20:34-35

Ye yourselves know that these hands ministered to my necessities, and to those who were with me.

Romans 1:14

I am debtor both to the Greeks and to the Barbarians, both to the wise and to the foolish;

1 Corinthians 9:19-23

For, being free from all men, I made myself servant to all, that I might gain the more.

2 Corinthians 4:5

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

2 Corinthians 11:5

For I reckon that I am in no respect behind the most eminent apostles.

2 Corinthians 11:23-27

Are they ministers of Christ? (I speak as beside myself) I am more; in labors more abundantly, in prisons more abundantly, in stripes above measure, in deaths often;

2 Corinthians 12:15

And I will most gladly spend and be spent for your souls. If I love you more abundantly, am I to be loved the less?

Treasury of Scripture Knowledge

Summary

And whosoever will be chief among you, let him be your servant:

Bible References

General references

Matthew 23:11
But the greater of you shall be your minister.
Luke 22:25
But He said to them, "The kings of the gentiles exercise lordship over them; and those having authority over them are called 'Benefactors.'
Philippians 2:5
Have this mind in you, which was also in Christ Jesus;