Uphold

verb to act in accordance with; to obey or follow a rule, decision, or instruction

• All employees are required to abide by the company's code of conduct.
• Just make sure you abide by the rules if you want to avoid any trouble.
• Dude, you gotta abide by the bro code!
• In order to succeed, you must abide by the principles of hard work and dedication.

verb to accept or act in accordance with a rule, decision, or recommendation

• All citizens must abide by the laws of the country.
• Just abide by the rules and everything will be fine.
• I ain't gonna abide by those ridiculous regulations.
• She chose to abide by her principles even when it was difficult.