abide by

verb2

1. •
   To accept (a decision or law) and act in accordance with it; to conform to (a decision or law); to acquiesce to (a decision or law).

   • I don't agree with it, but I'll abide by the decision to give the reward to her.
   • The defendent has abided by my ruling in good faith.
2. •
   To remain faithful to (something or someone); to adhere to (an idea or plan).

   • He may have shown his true colors, but he's supported me for years, so I'll abide by him.
   • She has served me loyally, abiding by my rule for almost my entire life.