'Drudgery' in the Bible

You also say, ‘How tiresome this is!’ And you disdainfully sniff at it,” says the Lord of hosts, “and you bring what was taken by robbery, and the lame or the sick [animals]; this you bring as an offering! Should I receive it with pleasure from your hand?” says the Lord.

For you recall, brothers and sisters, our toil and drudgery: By working night and day so as not to impose a burden on any of you, we preached to you the gospel of God.

and we did not eat anyone's food without paying. Instead, in toil and drudgery we worked night and day in order not to burden any of you.