"Whoever becomes humble like this child is the greatest in the kingdom of heaven." ( Matthew 18:4)

"... Whoever wishes to become great among you must be your servant, and whoever wishes to be first among you must be slave of all." ( Mark 10:43-44)

"When you are invited by someone to a wedding banquet, do not sit down at the place of honor, in case someone more distinguished than you has been invited by your host; and the host who invited both of you may come and say to you, 'Give this person your place,' and then in disgrace you would start to take the lowest place. But when you are invited, go and sit down at the lowest place, so that when your host comes, he may say to you, 'Friend, move up higher'; then you will be honored in the presence of all who sit at the table with you. For all who exalt themselves will be humbled, and those who humble themselves will be exalted." ( Luke 14:8-11)

"Two men went up to the temple to pray, one a Pharisee and the other a tax collector. The Pharisee, standing by himself, was praying thus, 'God, I thank you that I am not like other people: thieves, rogues, adulterers, or even like this tax collector. I fast twice a week; I give a tenth of all my income.' But the tax collector, standing far off, would not even look up to heaven, but was beating his breast and saying, 'God, be merciful to me, a sinner!' I tell you, this man went down to his home justified rather than the other, for all who exalt themselves will be humbled, but all who humble themselves will be exalted." ( Luke 18:10-14)

"If any want to become my followers, let them deny themselves and take up their cross daily and follow me. For those who want to save their life will lose it, and those who lose their life for my sake will save it." ( Luke 9:23-24)

"Blessed are the meek, for they will inherit the earth." ( Matthew 5:5)

Helpful links to related questions/topics

Rest for the Weary Who is Greatest? What does Jesus mean that "Everyone who exalts himself will be humbled and whoever humbles himself will be exalted"? Why did Jesus choose such a humble entrance (riding on a donkey) when He came into Jerusalem?