'Burden' in the Bible

Then [the leaders of] Judah said,“The strength of the burden bearers is failing,And there is much rubble;We ourselves are unableTo rebuild the wall.”

Now when it began to get dark at the gates of Jerusalem before the Sabbath [began], I commanded that the doors be shut and not be opened until after the Sabbath. Then I stationed some of my servants at the gates so that no load [of merchandise] would enter [Jerusalem] on the Sabbath day.