Matthew 20:27

and whoever wishes to be first among you, let him be your servant,

Matthew 18:4

Whoever humbles himself like this little child, shall be greatest in the kingdom of heaven;

Mark 9:33-35

And he came to Capernaum; and when he was in the house, he asked them, What did you dispute about on the way?

Luke 22:26

But you shall not be so. But let the greater among you be as the younger, and the chief as he that serves.

Acts 20:34-35

you yourselves know that these hands have served my necessities and those with me.

Romans 1:14

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

1 Corinthians 9:19-23

For being free from all men, I have made myself a servant of all, that I may gain more;

2 Corinthians 4:5

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

2 Corinthians 11:5

for I judge that I am not behind the chief of the apostles.

2 Corinthians 11:23-27

Are they ministers of Christ? I speak foolishly, I am more; in labors most abundant, in stripes above measure, in imprisonments most abundant, in deaths often;

2 Corinthians 12:15

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

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 greatest of you shall be your servant,
Luke 22:25
And he said to them, The kings of the nations exercise lordship over them; and those having power are called their benefactors.
Philippians 2:5
Let this mind be in you which was also in Christ Jesus,