The Earth.
Companion, faithful friend.
A physician and faithful companion of the apostle Paul.
Example sentence - His faithful companion exhibited alacrity in ever endeavor.
The faithful who are not members of the clergy.
Woolgar William. has written: 'Youth's faithful monitor; or, The young man's best companion'
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Loyal and faithful mean essentially the same thing.
faithful ones
beloved companion
Companion
to have a buddy or sidekick