quit one's post
quit one's office

He quit his post at the end of the campaign.

He continued to write book reviews for the Observer long after quitting his official post in 1914.

Nick then turns to Betsy promising to quit his post and return to a normal life.

No one, in the end, would say that he had quit his post or broken faith.

In 1984, he quit his post to begin a career as freelance lawyer.

A guard did indeed quit his post before a door of the palace.

In May, 2008 he quit his post over the issue.

He later quit his post as the governor of Sarawak in 1985 due to health reasons.

"On whose authority has he quit his post during this, my darkest hour?"

He quit his post with the labor union and opened a fancy hotel.