Matthew 20:27

and whoever wishes to be first among you shall be your [willing and humble] slave;

Matthew 18:4

Therefore, whoever humbles himself like this child is greatest in the kingdom of heaven.

Mark 9:33-35

They arrived at Capernaum; and when He was in the house, He asked them, “What were you discussing and arguing about on the road?”

Luke 22:26

But it is not to be this way with you; on the contrary, the one who is the greatest among you must become like the youngest [and least privileged], and the [one who is the] leader, like the servant.

Acts 20:34-35

You know personally that these hands ministered to my own needs [working in manual labor] and to [those of] the people who were with me.

Romans 1:14

I have a duty to perform and a debt to pay both to Greeks and to barbarians [the cultured and the uncultured], both to the wise and to the foolish.

1 Corinthians 9:19-23

For though I am free from all men, I have made myself a slave to everyone, so that I may win more [for Christ].

2 Corinthians 4:5

For we do not preach ourselves, but Jesus Christ as Lord, and ourselves [merely] as your bond-servants for Jesus’ sake.

2 Corinthians 11:5

Yet I consider myself in no way inferior to the [so-called] super-apostles.

2 Corinthians 11:23-27

Are they [self-proclaimed] servants of Christ?—I am speaking as if I were out of my mind—I am more so [for I exceed them]; with far more labors, with far more imprisonments, beaten times without number, and often in danger of death.

2 Corinthians 12:15

But I will very gladly spend [my own resources] and be utterly spent for your souls. If I love you greatly, am I to be loved less [by you]?

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 among you will be your servant.
Luke 22:25
Jesus said to them, “The kings of the Gentiles have absolute power and lord it over them; and those in authority over them are called ‘Benefactors.’
Philippians 2:5
Have this same attitude in yourselves which was in Christ Jesus [look to Him as your example in selfless humility],