Luqman - 31:18
Do not despise the people in arrogance, and do not go about in the earth boasting. Allah does not love the proud and boastful.
The believers walk in the earth without ostentation:
Luqman/31:19
Avoid ostentation in your walk and lower your voice. The ugliest sound is that of donkeys.
The Night Journey/17:37
Do not walk arrogantly on the earth; you cannot pierce the earth, nor can you be as tall as the mountains.
The Criterion/25:63
The servants of the Most Merciful are such that they walk in the earth without ostentation. And when the ignorant insult them, they offer peace.
The Women/4:36
Serve Allah and associate with Him nothing and no one. Do good to parents, relatives, orphans, the poor, near neighbors, distant neighbors, companions, travelers, and those to whom your oaths/agreements are due. Allah does not love the arrogant and conceited.